So we have :
1) created permissions for the group in which the users are in (say HR group)- to view Dynaforms
2) Selected a dynaform to show the case summary.
When the user tries to view the summary form. The error (PM Error1) shows.
A second error shows when I double click on the Case in my participated queue (Second Error)
NOTE: I have replicated this on PM 3.3.4 and 3.3.6 and I get the same error. When I tried the exact same process on 3.1, I can view the dynaform without any issues.