unfocusing CraftOS-PC while a GFX-mode program is running causes an instant crash

[Ocawesome101]

Describe the bug
While running a GFX-mode program, unfocusing the CraftOS-PC window causes a crash. This seems to specifically happen when a program writes to the terminal in GFX mode while the emulator is unfocused.

To Reproduce
Steps to reproduce the behavior:

1. Run either Wolf-CC or its refactored counterpart
2. If running Wolf-CC, navigate through the intro screen until the first room is showing.
3. Unfocus the window.
4. CraftOS-PC will close. It doesn't spit any errors to the console when this happens, which I find odd.

Expected behavior
CraftOS-PC should not close when unfocused.

Environment (please complete the following information):

• OS: Arch Linux
• OS Version: N/A
• CraftOS-PC Version: 2.6.5.1
• Compiled from source? Yes (AUR)

Additional context
I'm running CraftOS-PC under Plasma Wayland, with SDL_VIDEODRIVER=wayland set. I suspect this is part of the issue.

ETA: This does not happen using SDL_VIDEODRIVER=x11.