Thanks for playing!
Sorry to hear about the missing textbox message. It seems to only happen when dragging to resize the game window, so I disabled it as a workaround. The latest build should (hopefully) not have this issue.
Thank you for letting me know.
After checking the game’s screens.rpy file, I’ve identified the problem— The text box image’s file name in a screens.rpy script does not match the one given in the game’s gui folders, causing the game to look for an image that technically is not there.
As I am currently away, I won’t be able to push out a patch immediately, but when I am able, I’ll do so ASAP.