I patched with the last update file and every time I hit R to open a player's inventory I get this in my server log:

[Vanish] Automatically Harmony patched 'BaseNetworkable.GetConnectionsWithin_Patch1' method. (BaseNetworkable_GetConnectionsWithin_Patch)
[Vanish] Automatically Harmony patched 'BaseEntity.SignalBroadcast_Patch1' method. (BaseEntity_SignalBroadcast_Patch)
[Vanish] Automatically Harmony patched 'EffectNetwork.Send_Patch1' method. (EffectNetwork_Send_Patch)
[Vanish] Automatically Harmony patched 'Item.SetItemOwnership_Patch1' method. (Item_SetItemOwnership_phrase_Patch)
[Vanish] Automatically Harmony patched 'Item.SetItemOwnership_Patch1' method. (Item_SetItemOwnership_string_Patch)
[Vanish] Automatically Harmony patched 'BasePlayer.Teleport_Patch1' method. (BasePlayer_Teleport_Patch)
[Vanish] Load Data
Loaded plugin Vanish v2.0.5 by Whispers88
NullReferenceException: Object reference not set to an instance of an object
  at Oxide.Plugins.Vanish+VanishPositionUpdate.FixedUpdate () [0x0015b] in <041d80c302534fc1a4c4467fabeadf4b>:0 

NullReferenceException: Object reference not set to an instance of an object
  at Oxide.Plugins.Vanish+VanishPositionUpdate.FixedUpdate () [0x0015b] in <041d80c302534fc1a4c4467fabeadf4b>:0 

NullReferenceException: Object reference not set to an instance of an object
  at Oxide.Plugins.Vanish+VanishPositionUpdate.FixedUpdate () [0x0015b] in <041d80c302534fc1a4c4467fabeadf4b>:0 

NullReferenceException: Object reference not set to an instance of an object
  at Oxide.Plugins.Vanish+VanishPositionUpdate.FixedUpdate () [0x0015b] in <041d80c302534fc1a4c4467fabeadf4b>:0 

NullReferenceException: Object reference not set to an instance of an object
  at Oxide.Plugins.Vanish+VanishPositionUpdate.FixedUpdate () [0x0015b] in <041d80c302534fc1a4c4467fabeadf4b>:0 

I didn't unload the plugin before updating. It loaded it twice yesterday but corrected itself at server reboot today.