Bug ticket 1,533,069,091 - bugged game state of objects

Look in this thread for other pictures https://www.pathofexile.com/forum/view-thread/1548713

What I originally thought were ghosted dupes of mobs I now see are mobs with bugged game states, and it seems this is possible for any object.

Here we have a screenshot showing a chest which bugged right as I opened it -> as you can see the chest is visually represented as both closed and opened; it highlights with the mouseover as though it were closed and openable but in fact it is not and has already been opened and its contents spilled.