Its always loaded the same way, via the application. No bulk loading, etc... its all user inputted.

out of 60 databases (clients) only 1 has gotten this error so far.

I had our hosting company restore a database from the previous night and I checked the table, and those IDs weren't in there that got errors the next day.

Only 3 people have access to the database, me being one of them. There is NO way for the table to have gotten reseeded.