Just wanted to let you know that we are aware of the problem and our Product/QA Team is currently investigating it.

I am afraid that for the time being the only workaround is indeed reverting back to the 2.1.0h version.

For those who are still having difficulties please try the following:

GOG GALAXY-> GAME -> The nobs button next to your play button-> Manage installation->Configure -> Installation -> Uncheck "Automatically update to newest version"

Once you uncheck "Automatically update to newest version" please make sure to select the 2.1.0h version and press OK.

We do apologize for any inconveniences.