I'm Enjoying the game a lot and been playing without problems for the most part, but I found a problem that while not game ruining, bothers me a lot.

My first playthrough was as an air mage, and while I didn't actually noticed until the end since I was engroced with the game, but I stopped getting trophies after the one for getting the level three spells.
Even though I completed both the air and fire mages playthrough, completed the sidequests in what I thought was an optimal way (unless that doesn't mean you talk to your element's Master), and completed the fire playthough with maximum points, I'm not even getting the basic game completion Trophy.

I've checked the troubleshooting, put all the galaxy programs in the permission list of my antivirus and firewall, closed and reopenned the program and even uninstalled and reinstalled Gallaxy, but nothing works. I would love it if anyone had a solution to this problem, thank you.

I also don't receive trophies any more. I think the problem is connected to the 1.1 update

I also have not gotten some achievements that I should have gotten, such as by optimally completing a sidequest that I had never completed before. (I assume that if I get the bonus point in my element's favored attribute for completing the sidequest, it means I completed it optimally.)

My most recent achievement was three months ago, which was probably sometime around mid-February.

It seems that some of the achievements are a bit funky in the GOG version, as the GOG achievements API does not function exactly the same way as the Steam version does. It seems that this may be related to achievements that keep track of a number (such as how many kills you've made or how many mushrooms you've collected), but I'm not entirely sure.

Achievements in AGS have always been tricky to get playing nice with GOG, so there are probably still some teething issues. If we ever come across a solution, we'll look into addressing it. In the meantime, though, the in-game achievements GUI should still work accurately, which you can check by pressing the F2 key.