Autopilot electrical shutdown

[Robingoddyn]

Hello guys,

I am just doing my first ever flight in the Maddog from cold and dark using the tutorials on ther YT channel. While I was taxiing, suddenly I lost power and the whole FMC was erased. The autopilot seemed to reboot but the data didn't come back. All other instruments kept working though. The warnings it gave me were 'no autoland' 'no windshear alert'. Does anybody know what I might be doing wrong?

 

Cheers guys.

 

[spacebaby]

I have the same issue loosing power clearing FMC. Also crash to desk top when expanding my screen from full  to minimum