Today's update is a mesh.

Games vanished, same games in all plattform tabs despite of filters...

I know, PC is an open plattform and issues happen but maybe, just maybe, GOG should test their updates better.

Or at least make a roll back feature. It's not the first time, it's not the last time.

Lots of people reporting the same problem in No games showing at all. Logging out, then back in, has solved the issue for some but not others.

This fixed it for me as well, a quick logging out and back in. I was losing my mind. Thanks a lot!

"Have you tried turning it off and on again" is working way more often than most people think.
Should always try this before doing anything else ;)

It's the first thing I tried. It didn't work. Re-logging also had no effect. I don't think it's possible to fix this issue with a hotfix. Probably we'll have to delete some cache. I'll try to contact support.

Two new hotfixes triggered. The 2.0.39 solves the multi command line problem and tries to do the same with the invisible libary glitch. The 2.0.40 seems to be another fx for the invisible library, previously not completely fixed.

2.0.40 works. At least for me.