Plus sign appears in some Adobe scroll long text fields, not others

Hi JR, my sincere apologies!  I don't know why I didn't get notification of your reply last August.  I was so fed up with my form that I gave up hope of trying to find a fix.  Then, just tonight, I ended up finding out the solution, totally by chance:  in Prepare Form view, I dragged the edge of one of the text fields to the side, making it larger; then, when I went to Edit --> Undo, the + sign was magically showing!  I have no idea why resizing a form text field and then undoing the resize would make the + sign appear, but that seems to be the fix.  I wanted to return to this original post so that if anyone else runs into the same problem, they'll know what to do.  I very much appreciate your help.  🙂  Thank you, JR!

Hi JR, I appreciate the quick reply!  To share the form, do I attach the file to my reply, or is there a different interface that I should use?  (I want to make sure I don't do something that would go against the community guidelines, since I'm still not up to speed on the protocol for document sharing.)