FWIW a close look at two- three holes lower right above curb in photos- blue background- shows ' smoke' like traces typical of metal to metal rubbing- fretting, possibly indicating loose fasteners thru whatever bracket below- especially if bracket is aluminum alloy.
Most of the other fastener holes seem=- repeat seem to have paint in the countersink area ( reflections make it difficult to be sure ). had there been a vibration problem the paint would hav bee rubbed or flaked off exposing the bare material( aluminum or composite under the countersink. The panel may have been recently painted while held in place by only a few fasteners in the corners thus the edges of the panels -- appear-- repeat -- appear -- to have been freeshly painted also.
Just my .00002 cents worth having dealt with fastening issues- sealing issues- on both composites and metals and fatigue tests way too many moons ago