read lock failed for CVS

With the new version, I always have the error message:
"cannot load tags: cvs : read lock failed - giving up" after around 90K-120K data from cvs server

when I do: File/Browser CVS Repository/Configure.../... button besides the by tag (-r) text field input. This button is supposed to give me a list of available tags in cvs.

My cvs server should be ok because eclipse works and older versions (4.5) of intellij works as well.

I can type in the tag directly in the text box and browse the cvs repository without problem.

Thanks.