MicrosoftHi alanr ,
I recently had the same experience and believe some aspect of MS Teams has changed... again (Ugh) from my prior approach. This became my new workaround. First, I setup the "Recipient" Planner tab with a general structure a few columns. Then, from either the desktop MS Teams app or the web-based version, I opened up each of the individual cards and "moved" each of the cards over to my target Planner tab (3 dot thing). The respective columns should show up also if you've created some column infrastructure to receive them. When complete, need to just go back and delete the old. One casualty are the labels associated with the cards, they didn't transfer offer so need to recreate or assign. This just happened like this past week so at least it works... for now. Good luck. S.
