vscode-csharp: Omnisharp does not display all errors/warnings in VSCode

Environment data

dotnet --info output: .NET Command Line Tools (1.0.0-preview2-003131)

Product Information: Version: 1.0.0-preview2-003131 Commit SHA-1 hash: 635cf40e58

Runtime Environment: OS Name: Mac OS X OS Version: 10.11 OS Platform: Darwin RID: osx.10.11-x64

VS Code version: 1.6.0

C# Extension version: 1.4.1

Steps to reproduce

Open a project with several errors/warnings in it (a project that you can replicate this bug in is available upon request).

Expected behavior

Omnisharp displays all errors/warnings in the Problems window in VSCode

Actual behavior

Omnisharp only displays a few or no messages even though in the omnisharp log I can clearly see them and have verified that they are valid errors/warnings (or… at least sometimes the log contains all warnings/errors, sometimes it does not). I have uploaded my omnisharp log here. This is in a clean install with no other extensions. The project is a Unity project, but I doubt that should matter.

VSCode also logs “Some projects have trouble loading. Please review the output for more details.” however I cannot see anything suspicious in the log even with verbose logging enabled. Though it is pretty large so I might have missed something.

Restarting VSCode or the Omnisharp server does not solve it.

I have not tried to reduce my project to a smaller size and checked if it still happens, but I am more than happy to share my project with anyone to try to debug it.

For a while it would simply display one or sometimes a few warnings (I was fixing a lot of unused ‘using’ declarations) and I had to fix the single warning that was displayed, wait while it re-processed everything and then fix the next warning that would then show up.