Do you have the same issue if you follow the OP’s steps to reproduce it?
Yes [EDIT] Found the issue and template answer edited
Provide extra information to complete the original description of the issue:
Same issue with the B787H as the OP, not checked with the default MSFS 787-10
Just found the same issue occurs with the MSFS 787-10 Default Livery and this is the LEFT Fuel Pump switched to ON, which trigger the APU to shutdown
So weirdly, we have to only switch RIGHT Fuel Pump to ON at first then start the Right engine, then going further by switching the LEFT Fuel Pump to ON, at this time the APU will shutdown, eventually starting the LEFT engine
If relevant, provide additional screenshots/video:
Screenshots shown the previous post above, while testing
@Sousaboi12, you should have voted to your own thread, in order to add your own voice on voting …