I wouldn't go adding anything to try and resolve this. There are a couple of technical service bulletins from Dodge that are possibly related, I would take it to the dealer, have them check it out, have them check to see if it has the latest software in the transmission module, and check to see if these bulletins apply:
TSB # 21-015-05
TSB # 21-009-07
When you take it in, try to take a technician for a test drive and demonstrate the condition to the tech. This will increase the chances of getting it resolved.
Good Luck,
lg