Still getting exit error message on closing for an upgrade etc

Occasionally when I exit, I get a ‘delay bar’ and a clean exit.
This is not happening since I upgraded from 33.c etc.
The most frequent screen is the message posted before regarding possible probs with RF.

Just upgraded to 33.g and will test the exit situation again.

Two ‘clean’ exits with the delay bar. Thought all was OK.
Third attempt showed WD error.
Is the upload to CWOP the background culprit?