I was talking to a buddy of mine who has a new Jayco Eagle HT 27.5 RLTS. He had a similar problem with the fridge. Whenever the slide was in, the fridge wouldn't work on propane. He took it in for service and the tech found that the hose would kink when the slide retracted. They had to cut a section of hose out, extend it, and support it differently to avoid the problem.
Mike, Sue, Sissy and Little Man
2015 Ford F350 Lariat FX4 6.7 CC DRW
2015 Eagle Premier 351RSTS