Character select screen fixes:
- Bug: custom characters on the second row aren't selectable
- Bug: deleting a player can result in incorrect dragging behavior for CPU selector circles
Character editor fixes:
- Bug: character properties aren't saving correctly after a recent patch (also affected bone positioning in animation rigs)
- Bug: character file can fail to load if unexpected values end up in the data file (like "inf" for infinity, a rare occurrence seen in some files)