Filing

I am not using any locked forms.  And I have seen no recent updates to desktop software.  I trie d without a t3 and it worked for my husbands form but still won’t save mine. I do have a t1212 but that is not on the list. Any ideas?  I redid from scratch as well.  I saw other posts where they though the issue was related to T3 or T5s.

 

any thoughts?  

Thank you