I don't know if this will be any help; but if the issue is only in the one paved site , there could be a rock under the jack pad , allowing the pad to rock when the coach moves and what you hear is noise from the springs.
Could be worth the effort to raise the jacks and sweep under the pad , or place a board under the pad as a cushion to the pavement.
I carry 4 , one foot square , 3/4" plywood pads , to insulate the jack pad from the pavement AND in the event of very hot temps ,help keep the pad from sinking into the pavement.
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.