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:
• I noted this same issue with the 707. I used the Alt-P control binding to be pushed back when I couldn’t access it via ATC. When I toggled pushback off, I was unable to get the aircraft moving even at full throttle. When I switched to external view, I could see all of the aircraft’s wheels rotating backward as if sitting in slippery mud in all-wheel-drive, because the aircraft wasn’t even moving backwards, either.
If relevant, provide additional screenshots/video:
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