Do you have any more information on the Linux crash? Where and when did it happen exactly?
Sorry for the late reply. I was going to reply in the morning but totally forgot. To be fair I'm not 100% sure it's your fault (likely not), it looks like driver issue and I've already submitted somewhat similar bug report in mesa repository.
I happens during battle. It looks like something happens after enemy takes turn. When it's my turn to pick skill it crashes everything. And I mean it literally, see log below. Again now that I think about it it's likely not your fault. Maybe it has something to do with sway or Wayland. Or it's driver issue... again. 