Invisible POI in quest

[Hariix]

Version

2.0

Platform

Windows

Hello, when i start my quest the building make it invisible and i can travel into the wall, take loot in box through wall.
My friend was doing the quest with me and i dont have the problem but he cant open loot.

Furthermore, not only this time but sometimes, the flag to start the quest is invisible too.
I dont have POI info (F11) but i have a screen.

 

[bdubyah]

NotImplementedException: CopyFrom() not implemented yet
  at TileEntity.CopyFrom (TileEntity _other) [0x00000] in <f178f105e046413fb968c6794a8df7e7>:0
  at Prefab.CopyIntoLocal (ChunkCluster _cluster, Vector3i _destinationPos, System.Boolean _bOverwriteExistingBlocks, System.Boolean _bSetChunkToRegenerate, FastTags`1[TTagGroup] _questTags) [0x00726] in <f178f105e046413fb968c6794a8df7e7>:0
  at PrefabInstance.CopyIntoWorld (World _world, System.Boolean _CopyEntities, System.Boolean _bOverwriteExistingBlocks, FastTags`1[TTagGroup] _tags) [0x0008a] in <f178f105e046413fb968c6794a8df7e7>:0
  at PrefabInstance.ResetBlocksAndRebuild (World _world, FastTags`1[TTagGroup] questTags) [0x00070] in <f178f105e046413fb968c6794a8df7e7>:0
  at World+<ResetPOIS>d__363.MoveNext () [0x000b5] in <f178f105e046413fb968c6794a8df7e7>:0
  at UnityEngine.SetupCoroutine.InvokeMoveNext (System.Collections.IEnumerator enumerator, System.IntPtr returnValueAddress) [0x00026] in <be2cce08ca774b9684099a81093ecac0>:0

There have been a few posts with this error that I've seen already. I don't think we can go back to look at the old bug report sections but I think this is the same type of issue I reported where if you left a chest or something where a sleeper should spawn, it will break the POI reset when trying to quest there. This may be different though, but the pic looks just like what I would see.