ATR 42 / 72 hydraulic press. and some electricals go out after landing when engine IDLE

Do you have the same issue if you follow the OP’s steps to reproduce it?

Yes

Provide extra information to complete the original description of the issue:

It’s not only the ATR, it’s all the turboprop airplanes that looses AC power and hydrolics.

If relevant, provide additional screenshots/video: