Having Same problem with no mods,
2:56:18 Strange convex component145 in a3\plants_f\tree\t_pinuss2s_b_f.p3d:geometryView
2:56:18 Strange convex component149 in a3\plants_f\tree\t_pinuss2s_b_f.p3d:geometryView

also getting same issue as bug_id=19151

all started after after setting up a sector control mission in sp editor
reinstalled A3.pbo and still getting error