Red wall of error text on pumpjack pick up or looking at.

Have had a few players on us scourge get red wall text and crash to desktop (BM records it as a steam auth error.) When they walked near and/or attempt (fail or succeed) to hit up a pumpjack they placed.
One player tried over and over with same result until they looked a different away from pumpjack but were close enough to salvage hammer it, got red wall text and kicked but got it in their inventory. (possibly unrelated they had placed the pj while using a different pc)
from their output_log
The referenced script on this Behaviour (Game Object '<null>') is missing!
UnityEngine.AssetBundle:LoadAsset(String)
AssetBundleBackend:LoadAsset(String)
FileSystemBackend:Load(String)
GameManager:FindPrefab(String)
<RunImpl>d7:MoveNext()
UnityEngine.SetupCoroutine:InvokeMoveNext(IEnumerator, IntPtr)

[ line -956766584]

The referenced script on this Behaviour (Game Object '') is missing!
UnityEngine.AssetBundle:LoadAsset(String)
AssetBundleBackend:LoadAsset(String)
FileSystemBackend:Load(String)
GameManager:FindPrefab(String)
<RunImpl>d7:MoveNext()
UnityEngine.SetupCoroutine:InvokeMoveNext(IEnumerator, IntPtr)

[ line -956766424]

The referenced script on this Behaviour (Game Object '<null>') is missing!
UnityEngine.Object:Instantiate(Object, Transform, Boolean)
UnityEngine.Object:Instantiate(T, Transform, Boolean)
PrefabPreProcess:Process(String, GameObject)
GameManager:FindPrefab(String)
<RunImpl>d7:MoveNext()
UnityEngine.SetupCoroutine:InvokeMoveNext(IEnumerator, IntPtr)

[ line -956766632]

The referenced script on this Behaviour (Game Object 'effect - FXAA') is missing!
UnityEngine.Object:Instantiate(Object, Transform, Boolean)
UnityEngine.Object:Instantiate(T, Transform, Boolean)
PrefabPreProcess:Process(String, GameObject)
GameManager:FindPrefab(String)
<RunImpl>d7:MoveNext()
UnityEngine.SetupCoroutine:InvokeMoveNext(IEnumerator, IntPtr)

[ line -956765576]

The referenced script on this Behaviour (Game Object 'effect - FXAA') is missing!
UnityEngine.Object:Instantiate(Object, Transform, Boolean)
UnityEngine.Object:Instantiate(T, Transform, Boolean)
PrefabPreProcess:Process(String, GameObject)
GameManager:FindPrefab(String)
<RunImpl>d__7:MoveNext()
UnityEngine.SetupCoroutine:InvokeMoveNext(IEnumerator, IntPtr)

[ line -956765512]