I've made a few attempts to find something else to put instead of that "<null>" and it seems like I cannot find an alternative. Nice find! At least the fix is simple (or should be simple), there must be added a name that can be a valid placeholder for empty slots in the serialization/deser...

Tested on my own end. No such issue. Steam version of the game. Windows 10 build 19042.508 (20H2). Should be basically identical (barring cosmetic changes) from 19041.508 (2004) so try updating to that version of Windows 10. (Although I did lag out for other reasons -- having commit charge of 19GB -...