For the life of me I do not see why Newmar went with electric jacks other than cheaper to install and less cost for jacks. The after sale repairs will be starting to add up and it will no longer be cheap for anyone involved that have them.
Glad you have it fixed Jim, take a look at your door latch and see if the bolt is entering the latch correctly. The latch assembly can be adjusted. See if your door is not scrapping on lower, bottom, of door jam.