Hello all!
In case you are unaware, it appears that if you have invalid (or even mixed character sets) in your OT,
traded Pokemon of such OT will experience an OT change.
Such Pokemon of Gen 6 will change to language variations of "Sun." (with the period), based on it's language tag,
and Pokemon received in Gen 7 can be "Sun." or "Moon."
Example of the change:
List of known cases:
Games
Pokemon
OT
(Assumed) Reason