RS has started crashing VS 2019 at startup while "Processing files" since installing the latest version. This happens even if a solution is not loaded into VS.
I manually deleted all folders under AppData\Local\JetBrains\Transient\ReSharperPlatformVs16\v213_e355273f\SolutionCaches
This made no difference.
The only option seems to be suspending RS. If it isn't suspended during "Processing files" VS will crash and restart, leading to a crash loop.
Note: I run VS as Administrator
Visual Studio Professional 2019 16.10.2
Microsoft .NET Framework 4.8.04084
Windows 10 Enterprise 10.0.19042