All right I have had it happen 2 more times (figured out leave it on loading screen for while you do spawn) however, last time I had a direct cause Power went out
So, when it came back i was back to start My base was still there everything in storage however vehicles gone
So set up another game I had the son log in too then off killed the game ( like power) Logged on back to start vehicles there
Did it again though solo no kid logging on started it back back to start base there no vehicles
So it seems my issue ( initially) by improper save )
anyway Brand new APC back up installed now so no worries about power killing game before saved properly
I posted this follow up as it may help someone else or at least point them in the right direction