Folks, I have never had problems with SB until today. I have the kids coming over and loaded up the grill. Then I got the message. Before I started, I was out of pellets (empty), filled hopper with Weber pellets, started it up to 200, filled the grilled, went inside because it was raining and cold (38 degrees), and turned on SB. Within 5 minutes, I got a warning saying that the SF was not heating fast enough. Not sure what that means (I can guess) but I immediately changed the temp to 200. It managed to climb up and stabilize there. It has been running a little over 30 minutes now (long way to go).
It seems that several of us are having SB problems when the ambient temp is below 40 degrees. Although the new software has eliminated a lot of problems, maybe there is an issue with the PID, SB, and low operating temps. Just reporting observations. Later, alh.