so i have been using my realms to play with friends but i often work offline so i upload the single player world into the realms world to keep it up to date. however when i try to upload my world now it keeps failing often locking me out of logging to to the realm at all. i tried resetting the realms and tried different world in realms but the problem seems to be with the single player world. is there any way to fix the single player world without erasing it.

also i have been finding a few bugs in the world such as the mob spawns dont seem to be following the lighting and proximity to player rules, i just had a mob completely glitch and get frozen so bad when i tried to shoot it with an arrow the arrow bounced off and hit me.