Using Rider, I’m trying to do matrix things with unity, however for some reason suddenly Rider will only let me type the System.Numerics.Matrix4x4 instead of the Unity one.

I recently cloned a project and when I went to build it, Rider downloaded a .NET 9 Preview version. I figured “no harm”. I was mistaken. My projects no longer built and I removed that SDK from my system.

If I select this text with ctrl+w (“Extend Selection”), it shows just the term sprite being selected (good).