I am using unreal engine 5.1.1 and i tried making a driveable tank with Vigilante’s assets.
I used these blueprints UE5 - Tank Tracks - Google Drive and this tutorial UE5 Tutorial - Chaos Tank Blueprint - YouTube
Hovewer i get an error message “Blueprint Runtime Error: “Accessed None trying to read property CallFunc_Array_Get_Item”. Node: Set TrackUVSpeed_Left Graph: EventGraph Function: Execute Ubergraph Chaos Tank Blueprint: Chaos_Tank” If there is anyone who has some time to help me, i’d be very happy. 
Hi @mnxenjoyer
I havent seen this particular tutorial. But what i do know is there is only 1 UV for the tank tracks in the vigilante models. So if you are trying to move the left and right individually then you will have to make a seperate set of UVS for each track. Did you miss a step in the tutorial? The one ive seen explains this and shows you how to fix it in blender i believe.
Thats why u get the accessed none error as youre trying to access the left UV track that dont exist. Well im guessing so anyway i might be wrong