Move the file from the ProWin22/22Data folder to the BasWin22/22Data folder.

Then open Basic, top menu bar  Homebase > Homebase Maintenance and you should see Add Record to Homebase and hit the FIX IT button

Then the file should appear in Homebase.

You may have a problem  if the return done in Pro has a Ca LLC 568 included or a state return that hasnt been installed in Basic, I know I saw someone else mention that a few weeks ago.