it seems when slight rollback comes, my character has resources reappear on his back that were probably gathered at earlier time, but now cannot be dropped, traded or otherwise gotten rid of

EDIT: when i try to drag and drop them, there appears on the ground same resource, as if normal drop...resource window show resource gone, but number representing the amount of resource still remains, then after a few seconds...resource appears in window again, and still on has not dissappeared at all from back of toon though.

If you move and try to drop it again...resource that was displayed on ground from earlier attempt, dissappears and appears at new position, with same problem.