Recreational Vehicle Lpg Tank Valve/gauge problems of the 2013 Hyundai Accent

Occasionally, when going to usr my vehicle, I will try to unlock the car with my fob and notice it won't respond. Upon starting my vehicle, the engine turns over but my electronics don't fully activate. My clock is off, the radio doesn't turn on, and I can't use the dome lights. However, my dashboard information panel does display my odometer, fuel, and temp gauge, and I can scroll through the display options, but they have all reset. My telltale warning lights come on briefly like a normal start, and when they go away my tpms telltale remains flashing, indicating it's not getting a signal from my tires. Finally, though my engine sounds like is running, I can't put my vehicle in gear. My only fix has been to let the vehicle sit with the engine running for any where between 2 and 20 minutes, turn the vehicle off, and retry. Once it finally decides to turn on normal, the clock will display, although reset, my tpms no longer displays, and I can get into gear. Time sitting seems to not effect it because it can sit for days and work normal or hours and act up. My only possible explanation seems to involve the weather after getting very cold or excessive precipitation, but even that isn't necessarily going to guarantee this problem. It may just be pure randomness and it doesn't seem right at all.