I have owned a 2014 Sprinter made into a 2015 Itasca Navion motorhome since Jan 2018. It currently has 45K miles and has had all scheduled maintenance performed. While traveling this year, my wife and I have noticed about a dozen times when the transmission seems to quickly slip out of gear and then back in gear. This occurs within aproximately 1/2 second. It feels like an instant momentary loss of power but the engine and rpms are fine. It seems to only occur on moderately rough roads, but not the roughest, and sometimes when there is a gap or expansion joint in the road. I have talked with a Mercedes service representative who told me he had heard nothing about this. It's hard to reproduce as the intervals are generally at least an hour apart on a trip. Has anyone else experienced this or know what could be causing it? Could it be caused by a specific vibration frequency? Any suggestions for how concerned I should be and what I should do? Thanks in advance for your input.