Don't worry, it's not a problem with your computer.
In this case, it was a bug in the Library Browser (not related with FP 8.2.6 changes).
I upload a fix
here, if you want to use it. Because the next public Forest update may take some time.
Just install FP 8.2.6 again, and overwrite
ForestQtCatalog.dll at:
C:\ProgramData\Autodesk\ApplicationPlugins\ForestPackPro2024\Contents\plugins\2024Same file is valid for other 3DS Max versions as well.
PS I have another question, is it a way to rename Forest/Railclone objects from Lister?
No, sorry. It doesn't include any option to rename objects.