I lockpicked a chest in co-op play. Due to network issues, the command appeared not to have been issued. Then, I accidentally picked up the chest into my inventory. The character did indead pick the lock of the chest while it was in the inventory. But as a side-effect, the lockpick progress overlay was stuck at 0% and it only went away after reloading.
Unfurtunatly, I cannot provide a savegame of that issue.