My question involves criminal law for the state of: Idaho/Pennsylvania

After a fair amount of research, I'm having a hard time finding a specific answer. I'll be happy to provide any additional details if needed.

Statutory rape offense in Idaho, 6 years probation, which ran into when Idaho passed their registration law. Registered. After probation was completed, moved to Pennsylvania. Resistered there, and designated 10 year registrant, though listed under a worse offense, as it didn't have an exact match for the offense. Some time later original offense reduced to generic misdemeanor in the original jurisdiction. After more time passed, reached the 10 years with no problems and received notice in writing from PA that the registration requirement had expired, and was removed from the PA website.

Given that the registration laws are not an exact match, can there be any potential problems? Has the registration requirement only been lifted in PA? It is about 20 years since being placed on probation.