I'm having the same issue also. Running one wallet. I have 2.8M BBP coins and a sanctuary I just brought online this past Sunday. Ever since the sanctuary came online (coincidence?) my wallet stopped sending out PODC updates. My UTXOWeight remains at 0 (zero) and I've stopped receiving rewards the past 2 days.
What do we do???
His issue was the coins being scattered among the receiving addresses.. Following the steps below fixed it:
use the coin control box, use the "select all" box, and
send the coins to yourself.
You will have to wait 5-10 confirms then the PODC update should work.
in case anyone else has the same issue.