Lost all power on pushback

[etopsbr]

Hello, new Fs2024 user here, trying to do my first flight on A330, but after the pushback, with the engines already started all systems comes down.. Same also happens on A320 neo..

I've recorded a video of problem:

https://www.dropbox.com/scl/fi/4bywwm0zq4v7timhoirif/Microsoft-Flight-Simulator-2024-2025.12.26-21.00.06.03.mp4?rlkey=v4trbejgs8wqmgf8nfl47s7zi&dl=0