vscode-csharp: Omnisharp not showing up despite reinstall of everything

Everything has been working great for several weeks, all of a sudden it doesn’t report errors anymore and Intellisense seems to only suggest hits from inside the current file.

Environment data

dotnet --info output:

.NET Core SDK (reflecting any global.json): Version: 2.1.301 Commit: 59524873d6

Runtime Environment: OS Name: Mac OS X OS Version: 10.13 OS Platform: Darwin RID: osx.10.13-x64 Base Path: /usr/local/share/dotnet/sdk/2.1.301/

Host (useful for support): Version: 2.1.1 Commit: 6985b9f684

.NET Core SDKs installed: 2.1.301 [/usr/local/share/dotnet/sdk]

.NET Core runtimes installed: Microsoft.AspNetCore.All 2.1.1 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.All] Microsoft.AspNetCore.App 2.1.1 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App] Microsoft.NETCore.App 2.1.1 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]

To install additional .NET Core runtimes or SDKs: https://aka.ms/dotnet-download

VS Code version: 1.24.1 C# Extension version: 1.15.2

Steps to reproduce

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I reinstalled the C#-extension several times and it seems to succeed:

Installing C# dependencies… Platform: darwin, x86_64

Downloading package ‘OmniSharp for OSX’ (25614 KB)… Done! Installing package ‘OmniSharp for OSX’

Downloading package ‘.NET Core Debugger (macOS / x64)’ (45653 KB)… Done! Installing package ‘.NET Core Debugger (macOS / x64)’

Finished

I also installed dotnet CLI-tools, which I don’t think I had before, I think I just added the setting to ignore it. I also installed MonoFramework-MDK-5.10.1.47.

Expected behavior

The flame icon should show up in the status bar, and errors showing up/intellisense working.

Actual behavior

Omnisharp doesn’t seem to load.

I’m not sure if it autoupdated or something, cause it just stopped working from one day to another. If it did, can you disable autoupdates to prevent this from happening again?

Thankful for any tips!