I use GOG to play Loop Hero (through GOG Galaxy).
However, for now, I can't unlock the achievement "Show On GOG" even I unlock that achievement in the game.

There is no any update showed on GOG information page.
Also, my game activity is still stop at one year ago. Even I just played it few minutes before.

For now, this problem is just show on this game.

The achievement system is working fine for the other game I played on GOG.

Is there any solution to solve this problem?