Anyone else noticed any issues with the new fuel and cold temps?

Its been 0 at night here for the past few nights and the fuel is totally gelled up. The 6.2 is a no start. I ended up having to stick an electric heater in the engine compartment and then covered it with a heavy blanket. Took about 4 4 hours to warm up enough to get the fuel flowing. I added some cold weather additive to the tank and let it run for a while and no problems now.
It so rarely gets below 20 here. A week ago it was in the 50s or 60s during the week and I didn't add anything when I filled up.

No problems the past couple winters. So just wondering if anyone else has noticed any issues with ULSD?