Unreal Engine 4.22.1 BSP Face Selection and Extrusion, Etc. Not Working

I’m having the same exact issue - the face doesn’t turn fully orange when selected. Oddly, it only occurs in one very specific project that I’ve been working in for a while. Every other project works fine, and trying to recreate a new project of the same type (C++ based third person project) does not exhibit the bug.