Hello new to group. been rving for awhile and just recently bought a 2018 heartland 32rs fifth wheel. noticed when I go to unhitch from truck that the landing gear only operates one at a time and the kitchen slide starts to open up. I'm pretty sure this is not how this is supposed to operate. Also when i try to operate the jacks in manual both my slides will open up and prevent me from operating jacks. the dealer I got this from states that they never seen this before but its normal. any help would be appreciated.