Hi! I've encountered this bug a few times now and it is pretty bad. Whenever I try to name vehicles anything which includes a capital "M", the game opens the map screen even though I am in the VAB. So lets say I wanted to name a vehicle "Mun Explorer". The second I press shift + m the game freezes for a second and I find myself in the map screen without using a vehicle. If I didn't save my creation before naming it, this results in my vehicle not beeing saved. (I do love the VAB though)