I should like to make one final entry on this subject and do so hope Mr Tom is still reading this thread. I have the past few days been chasing another issue I have been plagued with on the FS2020 I use. I finally bit the bullet and did a full unload/load of FS2020 a couple of days ago. After setting up the usual add-ons, I got it back to almost where it was. Thought I might have one last shot at this perennial issue I (we) have been having with the pushback pro programme. I have be using the ambitious-pilots free programme in the meantime for which I am more than grateful to these people for their work. I removed all traces of the ambitious-pilots edition from the community folder and re-loaded the Pushback-Pro.
I was unexpectedly rewarded with the semblance of a reasonable pushback without the violent swings we all suffer ! !. Not perferct, and some very unusal wing bending upwards on the push but nonetheless, seems to work. I am wonerding if this might improve with time and a cache build up so I will have to accept it as is. I have absolutely no idea where to pinpoint the cause of this problem but as the community folder is more or less the same, perhaps, just perhaps it was a corrut file in the game. Guess I'll never know.