So I've recently started playing this game and everything was going fine, until I reached a point pretty far in the game, mission "Patrol Loren".

I play the mission, I get to the summary, I can review losses. As soon as I click "Done", the game crashes to desktop. I tried several times, even restarting windows. No changes.

(I am playing on Windows launching the game from Gog Galaxy, if that matters)

Does anyone have a workaround?

Update: I've uninstalled and reinstalled more than once. Verified files. Changed deployed units. Played in a window instead of fullscreen.

Not sure what of this, but something must have worked as I was able to progress!

I remember having a problem with one of the missions.
My pet theory was that it was related to some battle objective being missed that would have altered a follow up cut-scene.
e.g. Was there a NPC dwarf unit that got destroyed, was Ceridan killed, enemy unit escaped, etc?

It happened to me that after I completed about half of the game, I started having issues were the game kept crashing. It was due to some background process. This game really hates background processes...

So my recommendation would be to check the thread with "Prepare for the Battle" error. and follow the steps outlined there to check whether there is any process interfering with the game.