@mhamm30  Did you use ProSeries 2020 [PS20] to file this client?  Did you roll over this client's PS20 data to PS21?  Did you perform this client's 20 to 21 rollover recently or quite some time ago?    How many 2021 forms IA 4562A does this taxpayer have?  

I have not encountered the problem that you have described.  If you post additional info regarding this issue it may prove to be helpful.

Post back if you discover the remedy.