I built a Keezer this summer and I made 3 batches of ale to keep on tap. Last night I had an issue that was kinda strange. I poured a glass of ale and the keg wouldn’t give any more. I pulled the prv and n pressure in the keg. Guage on regulator still at set point of 10 pounds. All valves open. I raised the pressure to 12 pounds and I could hear the regulator chirp and pressure the keg. I have had no issues before. I didn’t opt for a cheap Amazon regulator. I have a mid level Taprite. I keep the temp at 36 degrees in the Keezer and the co2 bottle is in the Keezer. Do regulators stick or freeze? I would want to lower the pressures to 8 to 10 pounds because at 12 I get a bit more head on the pour than I prefer.