iced: All Examples: thread 'main' panicked at 'assertion failed: `(left == right)`

Hi! Total Rust noob here. Using Arch and an AMD GPU.

First, I could not start any example because of

thread 'main' panicked at 'called `Option::unwrap()` on a `None` value', /home/daniel/.cargo/registry/src/github.com-1ecc6299db9ec823/wgpu-native-0.4.3/src/instance.rs:474:5

I could fix that by installing Vulkan.

But now, I’m facing another Issue: Example apps start, but as soon as I move my mouse cursor over the example’s window, the app breaks with

>>>cargo run --package styling
    Finished dev [unoptimized + debuginfo] target(s) in 0.08s
     Running `target/debug/styling`
thread 'main' panicked at 'assertion failed: `(left == right)`
  left: `0`,
 right: `1`', /home/daniel/.cargo/registry/src/github.com-1ecc6299db9ec823/wgpu-native-0.4.3/src/hub.rs:120:9
stack backtrace:
   0: <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt
   1: core::fmt::write
   2: std::io::Write::write_fmt
   3: std::panicking::default_hook::{{closure}}
   4: std::panicking::default_hook
   5: std::panicking::rust_panic_with_hook
   6: rust_begin_unwind
   7: std::panicking::begin_panic_fmt
   8: <wgpu_native::hub::Storage<T,I> as core::ops::index::Index<I>>::index
             at /home/daniel/.cargo/registry/src/github.com-1ecc6299db9ec823/wgpu-native-0.4.3/src/hub.rs:120
   9: wgpu_native::command::command_encoder_begin_render_pass::{{closure}}
             at /home/daniel/.cargo/registry/src/github.com-1ecc6299db9ec823/wgpu-native-0.4.3/src/command/mod.rs:266
  10: core::option::Option<T>::map
             at /build/rust/src/rustc-1.42.0-src/src/libcore/option.rs:450
  11: wgpu_native::command::command_encoder_begin_render_pass
             at /home/daniel/.cargo/registry/src/github.com-1ecc6299db9ec823/wgpu-native-0.4.3/src/command/mod.rs:264
  12: wgpu_command_encoder_begin_render_pass
             at /home/daniel/.cargo/registry/src/github.com-1ecc6299db9ec823/wgpu-native-0.4.3/src/command/mod.rs:739
  13: wgpu::CommandEncoder::begin_render_pass
             at /home/daniel/.cargo/registry/src/github.com-1ecc6299db9ec823/wgpu-0.4.0/src/lib.rs:1059
  14: <iced_wgpu::window::backend::Backend as iced_native::window::backend::Backend>::draw
             at ./wgpu/src/window/backend.rs:81
  15: iced_winit::application::Application::run::{{closure}}
             at ./winit/src/application.rs:317
  16: winit::platform_impl::platform::sticky_exit_callback
             at /home/daniel/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.22.0/src/platform_impl/linux/mod.rs:698
  17: winit::platform_impl::platform::x11::EventLoop<T>::run_return
             at /home/daniel/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.22.0/src/platform_impl/linux/x11/mod.rs:310
  18: winit::platform_impl::platform::x11::EventLoop<T>::run
             at /home/daniel/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.22.0/src/platform_impl/linux/x11/mod.rs:406
  19: winit::platform_impl::platform::EventLoop<T>::run
             at /home/daniel/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.22.0/src/platform_impl/linux/mod.rs:645
  20: winit::event_loop::EventLoop<T>::run
             at /home/daniel/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.22.0/src/event_loop.rs:148
  21: iced_winit::application::Application::run
             at ./winit/src/application.rs:200
  22: iced::application::Application::run
             at ./src/application.rs:177
  23: iced::sandbox::Sandbox::run
             at ./src/sandbox.rs:128
  24: styling::main
             at examples/styling/src/main.rs:8
  25: std::rt::lang_start::{{closure}}
             at /build/rust/src/rustc-1.42.0-src/src/libstd/rt.rs:67
  26: std::panicking::try::do_call
  27: __rust_maybe_catch_panic
  28: std::rt::lang_start_internal
  29: std::rt::lang_start
             at /build/rust/src/rustc-1.42.0-src/src/libstd/rt.rs:67
  30: main
  31: __libc_start_main
  32: _start
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

Any clue?