My game is called Finistère and although this file name runs in the simulator it crashed on the device if you upload a build file with the diacritic that was the file name when making the build in terminal. but if yo build as Finistere and then rename the file in Finder it works ok. Also the game is on device and does launch ok even from the crashing file. Also to note the play date system font doesnt have any diacritics so that also renders the è as a ? letter
macOS 13.5 (22G74)
SDK 2.0.3 simluator and device