Game crashes after joining server

Only started after the last update. On Official server#3 Fast PVE EU, the game crashes the instant I get in game. The following error pops up and I get kicked out the game.

[File:C:\UE4\CSAND\Engine\Source\Runtime\CoreUObject\Private\Serialization\AsyncLoading.cpp] [Line: 3447]
MaterialExpressionMaterialFunctionCall /Engine/Functions/Engine_MaterialFunctions02/Gradients/SmoothCurve.SmoothCurve:MaterialExpressionMaterialFunctionCall_21: Serial size mismatch: Got 28, Expected 1509

Like I said this only started after the update. I have applied both the hotfix from 4-19 and 4-20. Since I have no such directory (never did) I assume it is a server side error. I can log into other servers I have never played just fine. I am posting in here aa well as the support section. Because if I understood your patch notes correctly there has been a new decay system implemented. Which means if I can’t get on all my stuff will be looted and/or destroyed. Any assistance would be appreciated.

A.Tane

Solved. Game files got jacked up after update. Sadly though I did loose 20 cabinets, 6 large wooden crates and my armorer bench. Armor, raw materials extra thralls all just gone.

Leave all dicord teamspeak or xbox party chats/close all things running except Conan