open this project folder and create here folder Plugins
copy there old Cable Component from UE5.1 plugins folder
start project and let it rebuilt whatever it wants
close this project
copy this rebuilded Plugins folder to my current (not C++) project
after that, seems like it didn’t replace old plugin but add new one with CableActor in Plugins folder (inside UE editor) and old cables still ignore physics while actor is moving
so I started to try to replace old cables with this new CableActor inside actors BP, and some time awhile old cables started to do what they should