Perfect bug fixed, on my configuration however "sometimes" even if rarely it is no longer possible to remove/add the check on the two tabs shown in the screenshot
It might depend on my system, on your Distribution it seems not to happen.
Regarding your latest Distribution I noticed that you are missing the "stdc.library", on my system it seems to be indispensable, without "stdc.library" in system startup I have a request for this library, many applications use it.