Planed burn heading periodically goes AWOL when switching between Flight and Map views.

I regret to say that I do not know the exact steps to replicate this issue, but when orbiting around luna, with a planned burn already in place, my heading for the planned burn goes awall everytime i switch between flight view and map view. this has happened to my 2 time already, and every time, I have had to restart my mission.

I cannot say this happenes on other planets as I haven't gone to any at the moment, but this is a rather consistant issue that I have expierenced.

NOTE the screenshot does not illustrate this issue, I only used it because I was forced to.