SublimeLinter: [beta] SL fails to load settings-schema.json (Windows?)

Woke up this morning with SL4 not working anymore: no matter what the linter or the file, I get a number of AttributeError(s), mostly AttributeError: 'NoneType' object has no attribute 'pop', AttributeError: 'Daemon' object has no attribute '_callback', AttributeError: 'NoneType' object has no attribute 'get_view_dict', and AttributeError: 'NoneType' object has no attribute 'get_line_dict'. These errors repeat themselves whenever I modify or save the file that’s supposedly being linted.

Windows 10 1709 (16299.192) Sublime Text 3 (3143) SublimeLinter v4.0.0-rc.9.1

DPI scale: 1.25
startup, version: 3143 windows x64 channel: stable
executable: /C/Program Files (x86)/Portable/Sublime Text 3/sublime_text.exe
working dir: /C/Program Files (x86)/Portable/Sublime Text 3
packages path: /C/Program Files (x86)/Portable/Sublime Text 3/Data/Packages
state path: /C/Program Files (x86)/Portable/Sublime Text 3/Data/Local
zip path: /C/Program Files (x86)/Portable/Sublime Text 3/Packages
zip path: /C/Program Files (x86)/Portable/Sublime Text 3/Data/Installed Packages
ignored_packages: ["ActionScript", "AppleScript", "ASP", "C#", "Clojure", "Color Scheme - Legacy", "D", "Diff", "Erlang", "Go", "Graphviz", "Groovy", "Haskell", "Lisp", "Matlab", "Objective-C", "OCaml", "Pascal", "Perl", "Rails", "RestructuredText", "Ruby", "Rust", "Scala", "ShellScript", "TCL", "Textile", "Vintage"]
Errors parsing theme:
icon_folder is missing layer0.opacity, setting to 1.0 for backwards compatibility
icon_folder_loading is missing layer0.opacity, setting to 1.0 for backwards compatibility
pre session restore time: 0.232949
startup time: 0.300949
first paint time: 0.300949
reloading plugin Default.auto_indent_tag
reloading plugin Default.block
reloading plugin Default.comment
reloading plugin Default.convert_syntax
reloading plugin Default.copy_path
reloading plugin Default.delete_word
reloading plugin Default.detect_indentation
reloading plugin Default.duplicate_line
reloading plugin Default.echo
reloading plugin Default.exec
reloading plugin Default.fold
reloading plugin Default.font
reloading plugin Default.goto_line
reloading plugin Default.history_list
reloading plugin Default.indentation
reloading plugin Default.install_package_control
reloading plugin Default.kill_ring
reloading plugin Default.mark
reloading plugin Default.new_templates
reloading plugin Default.open_context_url
reloading plugin Default.open_in_browser
reloading plugin Default.pane
reloading plugin Default.paragraph
reloading plugin Default.paste_from_history
reloading plugin Default.profile
reloading plugin Default.quick_panel
reloading plugin Default.run_syntax_tests
reloading plugin Default.save_on_focus_lost
reloading plugin Default.scroll
reloading plugin Default.set_unsaved_view_name
reloading plugin Default.settings
reloading plugin Default.show_scope_name
reloading plugin Default.side_bar
reloading plugin Default.sort
reloading plugin Default.swap_line
reloading plugin Default.switch_file
reloading plugin Default.symbol
reloading plugin Default.transform
reloading plugin Default.transpose
reloading plugin Default.trim_trailing_white_space
reloading plugin Default.ui
reloading plugin CSS.css_completions
reloading plugin HTML.encode_html_entities
reloading plugin HTML.html_completions
reloading plugin 0_package_control_loader.00-package_control
reloading plugin 0_package_control_loader.01-pygments
reloading plugin 0_package_control_loader.02-bz2
reloading plugin 0_package_control_loader.50-markupsafe
reloading plugin 0_package_control_loader.50-pymdownx
reloading plugin 0_package_control_loader.50-python-markdown
reloading plugin 0_package_control_loader.50-pyyaml
reloading plugin 0_package_control_loader.51-python-jinja2
reloading plugin 0_package_control_loader.55-jsonschema
reloading plugin 0_package_control_loader.55-mdpopups
reloading plugin AdvancedNewFile.AdvancedNewFile
reloading plugin Alignment.Alignment
reloading plugin All Autocomplete.all_views_completions
reloading plugin BufferScroll.BufferScroll
reloading plugin GitGutter.plugin
reloading plugin neko nml syntax.neko-nml-std-completions
reloading plugin Open Folder.OpenFolder
reloading plugin Package Control.1_reloader
reloading plugin Package Control.2_bootstrap
reloading plugin Package Control.Package Control
reloading plugin SideBarEnhancements.SideBar
reloading plugin SideBarEnhancements.SideBarAPI
reloading plugin SideBarEnhancements.SideBarDefaultDisable
reloading plugin Stylus.Stylus
reloading plugin SublimeLinter-contrib-pug-lint.linter
reloading plugin SublimeLinter-contrib-stylint.linter
reloading plugin SublimeLinter-cpplint.linter
reloading plugin SublimeLinter-csslint.linter
reloading plugin SublimeLinter-jshint.linter
reloading plugin SublimeLinter-pycodestyle.linter
reloading plugin SublimeLinter.busy_indicator_view
reloading plugin SublimeLinter.commands
reloading plugin SublimeLinter.status_bar_view
reloading plugin SublimeLinter.sublime_linter
reloading plugin Babel.Babel
reloading plugin CSScomb.CSScomb
reloading plugin SublimeLinter-contrib-eslint.linter
plugins loaded
Traceback (most recent call last):
  File "C:\Program Files (x86)\Portable\Sublime Text 3\sublime_plugin.py", line 210, in on_api_ready
    m.plugin_loaded()
  File "sublime_linter in C:\Program Files (x86)\Portable\Sublime Text 3\Data\Installed Packages\SublimeLinter.sublime-package", line 46, in plugin_loaded
  File "lint.settings in C:\Program Files (x86)\Portable\Sublime Text 3\Data\Installed Packages\SublimeLinter.sublime-package", line 63, in load
  File "lint.settings in C:\Program Files (x86)\Portable\Sublime Text 3\Data\Installed Packages\SublimeLinter.sublime-package", line 139, in on_update
  File "lint.settings in C:\Program Files (x86)\Portable\Sublime Text 3\Data\Installed Packages\SublimeLinter.sublime-package", line 231, in settings_valid
  File "lint.util in C:\Program Files (x86)\Portable\Sublime Text 3\Data\Installed Packages\SublimeLinter.sublime-package", line 667, in load_json
  File "C:\Program Files (x86)\Portable\Sublime Text 3\sublime.py", line 192, in load_resource
    raise IOError("resource not found")
OSError: resource not found
Package Control: Skipping automatic upgrade, last run at 2018-01-08 10:37:59, next run at 2018-01-08 11:37:59 or after
Traceback (most recent call last):
  File "C:\Program Files (x86)\Portable\Sublime Text 3\sublime_plugin.py", line 530, in on_activated_async
    callback.on_activated_async(v)
  File "status_bar_view in C:\Program Files (x86)\Portable\Sublime Text 3\Data\Installed Packages\SublimeLinter.sublime-package", line 42, in on_activated_async
  File "status_bar_view in C:\Program Files (x86)\Portable\Sublime Text 3\Data\Installed Packages\SublimeLinter.sublime-package", line 85, in get_we_count
AttributeError: 'NoneType' object has no attribute 'get_view_dict'
Traceback (most recent call last):
  File "C:\Program Files (x86)\Portable\Sublime Text 3\sublime_plugin.py", line 530, in on_activated_async
    callback.on_activated_async(v)
  File "sublime_linter in C:\Program Files (x86)\Portable\Sublime Text 3\Data\Installed Packages\SublimeLinter.sublime-package", line 102, in on_activated_async
  File "sublime_linter in C:\Program Files (x86)\Portable\Sublime Text 3\Data\Installed Packages\SublimeLinter.sublime-package", line 317, in check_syntax
  File "sublime_linter in C:\Program Files (x86)\Portable\Sublime Text 3\Data\Installed Packages\SublimeLinter.sublime-package", line 323, in clear
  File "lint.linter in C:\Program Files (x86)\Portable\Sublime Text 3\Data\Installed Packages\SublimeLinter.sublime-package", line 1194, in clear_view
AttributeError: 'NoneType' object has no attribute 'pop'
Traceback (most recent call last):
  File "C:\Program Files (x86)\Portable\Sublime Text 3\sublime_plugin.py", line 530, in on_activated_async
    callback.on_activated_async(v)
  File "status_bar_view in C:\Program Files (x86)\Portable\Sublime Text 3\Data\Installed Packages\SublimeLinter.sublime-package", line 42, in on_activated_async
  File "status_bar_view in C:\Program Files (x86)\Portable\Sublime Text 3\Data\Installed Packages\SublimeLinter.sublime-package", line 85, in get_we_count
AttributeError: 'NoneType' object has no attribute 'get_view_dict'
Traceback (most recent call last):
  File "C:\Program Files (x86)\Portable\Sublime Text 3\sublime_plugin.py", line 389, in run_callback
    expr()
  File "C:\Program Files (x86)\Portable\Sublime Text 3\sublime_plugin.py", line 620, in <lambda>
    run_callback('on_hover', callback, lambda: callback.on_hover(v, point, hover_zone))
  File "sublime_linter in C:\Program Files (x86)\Portable\Sublime Text 3\Data\Installed Packages\SublimeLinter.sublime-package", line 171, in on_hover
  File "sublime_linter in C:\Program Files (x86)\Portable\Sublime Text 3\Data\Installed Packages\SublimeLinter.sublime-package", line 420, in open_tooltip
AttributeError: 'NoneType' object has no attribute 'get_line_dict'
Traceback (most recent call last):
  File "C:\Program Files (x86)\Portable\Sublime Text 3\sublime_plugin.py", line 530, in on_activated_async
    callback.on_activated_async(v)
  File "status_bar_view in C:\Program Files (x86)\Portable\Sublime Text 3\Data\Installed Packages\SublimeLinter.sublime-package", line 42, in on_activated_async
  File "status_bar_view in C:\Program Files (x86)\Portable\Sublime Text 3\Data\Installed Packages\SublimeLinter.sublime-package", line 85, in get_we_count
AttributeError: 'NoneType' object has no attribute 'get_view_dict'
SublimeLinter: computed PATH from system:
C:\Users\Utente\AppData\Roaming\npm
C:\Program Files (x86)\Python\Scripts\
C:\Program Files (x86)\Python\
C:\Program Files (x86)\Intel\iCLS Client\
C:\Program Files\Intel\iCLS Client\
C:\Windows\system32
C:\Windows
C:\Windows\System32\Wbem
C:\Windows\System32\WindowsPowerShell\v1.0\
C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL
C:\Program Files\Intel\Intel(R) Management Engine Components\DAL
C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT
C:\Program Files\Intel\Intel(R) Management Engine Components\IPT
C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common
C:\Program Files\Intel\WiFi\bin\
C:\Program Files\Common Files\Intel\WirelessCommon\
C:\WINDOWS\system32
C:\WINDOWS
C:\WINDOWS\System32\Wbem
C:\WINDOWS\System32\WindowsPowerShell\v1.0\
C:\Program Files (x86)\Git\cmd
C:\Program Files (x86)\NML
C:\Users\Utente\AppData\Local\Microsoft\WindowsApps

 
Traceback (most recent call last):
  File "C:\Program Files (x86)\Portable\Sublime Text 3\sublime_plugin.py", line 530, in on_activated_async
    callback.on_activated_async(v)
  File "sublime_linter in C:\Program Files (x86)\Portable\Sublime Text 3\Data\Installed Packages\SublimeLinter.sublime-package", line 102, in on_activated_async
  File "sublime_linter in C:\Program Files (x86)\Portable\Sublime Text 3\Data\Installed Packages\SublimeLinter.sublime-package", line 317, in check_syntax
  File "sublime_linter in C:\Program Files (x86)\Portable\Sublime Text 3\Data\Installed Packages\SublimeLinter.sublime-package", line 323, in clear
  File "lint.linter in C:\Program Files (x86)\Portable\Sublime Text 3\Data\Installed Packages\SublimeLinter.sublime-package", line 1194, in clear_view
AttributeError: 'NoneType' object has no attribute 'pop'
Traceback (most recent call last):
  File "C:\Program Files (x86)\Portable\Sublime Text 3\sublime_plugin.py", line 530, in on_activated_async
    callback.on_activated_async(v)
  File "status_bar_view in C:\Program Files (x86)\Portable\Sublime Text 3\Data\Installed Packages\SublimeLinter.sublime-package", line 42, in on_activated_async
  File "status_bar_view in C:\Program Files (x86)\Portable\Sublime Text 3\Data\Installed Packages\SublimeLinter.sublime-package", line 85, in get_we_count
AttributeError: 'NoneType' object has no attribute 'get_view_dict'
Traceback (most recent call last):
  File "C:\Program Files (x86)\Portable\Sublime Text 3\sublime_plugin.py", line 530, in on_activated_async
    callback.on_activated_async(v)
  File "sublime_linter in C:\Program Files (x86)\Portable\Sublime Text 3\Data\Installed Packages\SublimeLinter.sublime-package", line 111, in on_activated_async
  File "sublime_linter in C:\Program Files (x86)\Portable\Sublime Text 3\Data\Installed Packages\SublimeLinter.sublime-package", line 299, in hit
  File "lint.queue in C:\Program Files (x86)\Portable\Sublime Text 3\Data\Installed Packages\SublimeLinter.sublime-package", line 19, in hit
AttributeError: 'Daemon' object has no attribute '_callback'