Missing some achievement I have done before all losing all previous achievement

Before anything: I’m on the GOG version, I don’t have GOG Galaxy and I’m on the version 1.3.0.6 x64 of the game.

Some days ago I saw that I was missing the Lv85 achievement even If I was Lv90+. I don’t know If there was other achievement I didn’t get or If I did get this achievement and lost It.

Today I beat Beronath for the first time. I wanted to redo the fight, so I got to the main menu and reload my character. When I killed Beronath a second time I got the achievement again and when I checked my achievement window… It only showed 1 achievement done, for killing Beronath. But each time I load my character It reset this achievement, so 0 achievement. Here is a screensot of the window:

In my character stats It still show that my most powerful foe killed is Beronath.

I don’t have any mod installed.

found it out today as well coz i rarely look at achievements. drew my attention when i started new session with freshly created character and got same achievement again (save Ulgrim, save Darlet etc, all of which i did ages ago on old characters). same 1.3.0.6 x64 GOG version w/o galaxy, no mods, clear install - after getting achievement its being shown in the list but after finishing session and starting another it resets like on pic posted by OP, all achievements are 0.

Looks like I have the same issue.

GoG stand alone installer for main game and DLCs. Updated to version 1.3.0.6 x64. Only mod installed is Grim Raynbow 0.0.1.4.

Finished all acts on Ultimate, just killed Beronath last night and started working on SR.

Checked to see if I had the all shrine achievement and realized that ALL the achievements were gone.

Shouldn’t matter, but I am playing on macOS 26.6.1 on Crossover 26.3.

Edit:
I just re-loaded some of my past saves to check if it was some interaction with external programs (eg. GDStash), and back to the end of A4 on Normal there are no achievements.

wonder if something in the fix meant to prevent certain cheevos repopping after unlock prevents regular pop
Because if an achievement wasn’t cleared, normally you’d get the lvl 85 cheevo insta popped loading an old char, along with shrines etc
Or mebe something is reading it as cleared despite ingame window having it reset now :thinking:

As a test, I just tried re-installing 1.3.0.5 and loaded my current save with it.

It looks like all (?) the achievements show up in the list again, Beronath on ultimate, etc.

Tried loading the save in 1.3.0.6 again, still missing.

So it does seem they are being saved, just not displayed under 1.3.0.6.

Edit: removed random ‘the’ that snuck into a sentence.