I had something like that on windows. IDK macs so im not sure how much this will help but you need to delete somethings in the games registry.
This is my windows guide (just incase delete only the things that have resolution in the name since idk what would happen if you delete all on mac):
"I figured out how to fix my resolution problem. I needed to delete my game preference in windows registry.
Found in HKEY_CURRENT_USER
SOFTWARE
T-Hoodie Draws
Max_The_Elf_DEMO
Delete everything in there"
If you cant find the game in the same path then try searching t-hoodie if possible.
