Legend Pikachu, thanks for the update!

Reproduced twice now by trying to give eachother critical items via CTRL+Click (pistol, burner mining drills were the two crash causes).

Non-headless server, running with increased costs and various other map settings, let me know if you need a copy of the save :)

1976.479 Error CrashHandler.cpp ...

Ahhhh!

Tried closing discord and it still happened. Another overlay I had was RivaTuner for showing system temps and what not, seems it was that. After upgrading it then Factorio didn't crash Thanks for pointing me in the right direction.

Noticed this on 15.0 fresh too, was too lazy to post a bug report then as was mid game, keen to get back into it.

Pressing Alt + Enter when the game loads as windowed mode to get to full screen, or if its in full screen and pressing it to get to windowed (or by accident) results in a crash.
Same ...