I got room reloading to work, but every time I use it the background becomes white and sort of acts like a background doesn't exist. I ran GMLive by itself in a test save and the same issued occurred. I just recently updated Gamemaker to 23.4, so I was wondering if that had something to do with it?

The recent beta version broke JSON decoding for big integers - if you try

show_debug_message(json_parse("4294967295"))

it’ll print

2147483647

I’ll hopefully release an update sometime soon

Sweet, thanks. I did manage to find a work around in the mean time that'll get around the issue until it's patched. If you give a background a sprite and enable both the horizontal and vertical tiles, it'll prevent the background from becoming white when reloading the room.