Characters are pawns, but pawns are not characters.
I did not add support for pawn classes at all.
Your components only need guids if you have multiple instances of same component class on the same spawned actor blueprint.
Only “Save Game World” or “Save Actor Hierarchy” will save components list of an Actor, where a Guid for component is considered, otherwise you can manually just use “Save Component” function regardless of having a Guid or not.