Regarding the recently installed modules from the VCV library—one of them likely has a bug. It won’t allow you to open the library in VCV.
Which modules did you install and what OS/Version/Rack version? This post is too light on info to help. Maybe also post the log.txt when you had the module browser not open and then quit Rack?
For reference, I am all up to date on modules, MacOS 26.5.3 arm64, Rack 2.6.6. No issues I can see whatsoever.
it’s the VAEMI plug, already reported it to VCV support, they suggested deleting the respective folder and it worked again, I also reported it to VAEMI and they will look into the problem.
Hmm, works fine on MacOS arm64.
but not on Windows 11 25H2 with Rack pro 2.6.6
thanxxx … I don’t know why, but I thought it would be Vaemi … 
Yes, it wasn’t working in windows for me either, I think it won’t let the module preview display as everything at the top of the library loads fine but when I go to search for that module it crashes, I would imagine it crashes if I scrolled to that module too…I just have the module deleted until it’s fixed, it’s probably going to keep nagging updates but I have to leave it out for now