(18:48:18) | Server Exception: Building Manager
(18:48:18) | NullReferenceException

had to wipe server and take out plugin by plugin of all 180

I may be having the same issue.  The boxes are not being removed after done recycling.  I have the same errors spamming in my console and have had my server crash a couple times today.

hello yes same for us, after use /rec command woodbox will stay there and dont disapear. and we get the same message in rcon like above.
we dont have the full error any more because the log is cleared but it have something to do with the decay tick.

we use now again the 2.1.7v

@PlayerKnownAsRay a server restart fix our problem we dont needed to wipe.

Thanks for the reports

Merged post

Still an issue?

Still an issue. -logfile output is:

NullReferenceException
  at (wrapper managed-to-native) UnityEngine.Component.get_transform(UnityEngine.Component)
  at BaseEntity.WorldSpaceBounds () [0x00000] in <b89a8483406c43828373c9e47205ea1f>:0 
  at BaseEntity.GetBuildingPrivilege () [0x00000] in <b89a8483406c43828373c9e47205ea1f>:0 
  at DecayEntity.GetBuildingPrivilege () [0x00011] in <b89a8483406c43828373c9e47205ea1f>:0 
  at DecayEntity.DecayTick () [0x0006c] in <b89a8483406c43828373c9e47205ea1f>:0 
  at ServerBuildingManager.Cycle () [0x0016b] in <b89a8483406c43828373c9e47205ea1f>:0 
  at ServerMgr.Update () [0x00075] in <b89a8483406c43828373c9e47205ea1f>:0 
UnityEngine.DebugLogHandler:Internal_LogException()
UnityEngine.DebugLogHandler:LogException(Exception, Object)
UnityEngine.Logger:LogException(Exception, Object)
UnityEngine.Debug:LogException(Exception, Object)
ServerMgr:Update()​