Just before battle in Drezden, when you get briefing in your commander tent.
Right after briefing ends, first sign of bug is that i cannot see stack numbers in my inventory.
I also cannot sell anything after that. Items got put on transaction in trade window, but game says all of them worth nothing, and you cannot confirm transaction.
And lastly, and worst, when battle of Drezden begins, game doesn’t show spell, ability and belt buttons above character portrait. For weird reason with exception of Nenio. I can select her spells. And when i do - it’s just got stuck there (visually).
I though maybe bug will persist only through Drezden, so i tried to quickly rush it on story difficulty, but it persisted beyond, to the point of been utterly unplayable.