[UE4.27.2] Uncle Chop's Rocket Shop - failed to fill whole buffer

[mycroftjr]

0_run.sav works, Master.sav works with warning offset 1609: StructType for ".UserActionBinds.Value" unspecified, assuming Struct(None).
0.sav errors completely:

offset 24107: StructType for ".VrLevelExperienced.Key" unspecified, assuming Guid
Error: at offset 61673: io error: failed to fill whole buffer

SaveGames.zip