Looks like galaxy is stuck on a playtime of 1 minute despite multiple plays. I hope they improve the playtime counter as this is not the first game to have an issue of late.

Same for me. The playtime counter didn't work in Kathy Rain either.

Its probably because galaxy starts only Shadwen Launcher and the game itself isnt connected to galaxy timer.

Achievements won't unlock in Galaxy, either, even though they're popping up in-game. I've also noticed the Shadwen launcher appears twice: At launch and after switching to full-screen mode. At least in OS X.

on Win 7 64bit I had to wait 10-15mins for achievs to unlock on Galaxy. Never had problem with launcher poping up when I switch from windowed to fullscreen/borderless fullscreen.

Here it's pretty mixed up. I've got 55% of the achievements within GGC, but it should be around 90% or so. I noticed some GOG application to crash in the background while playing, so I think after that happened the achievements of my first playthrough weren't noted anymore - tho shown in the game.

I've got 50 minutes on the timer for two completions =)