[0.18.2.0] Random Game Crash

:warning: Important: Please include the version number of the game in the title! (for example: [0.18.2.0] Broken Feature).
The latest version is [0.18.2.0]

Summary of bug here: I was literally just sitting in game and it crashed.

Steps to Reproduce

Please list how this bug can be reproduced, if possible. Pictures would be much appreciated!
No clue as stated above I was just sitting in the game I went to tab out and tab back in and it crashed.

What I expected to happen

The normal behavior.

What happened

The issue the bug caused.
I got this as my error message: LowLevelFatalError [File:Unknown] [Line: 819]
Rendering thread exception:
LowLevelFatalError [File:Unknown] [Line: 270]
FMeshElementCollector::AddMesh - On MeshBatchElement 0, Material ‘MaterialInstanceDynamic_0’, index buffer object has null RHI resource

0x00007ff86c65b699 KERNELBASE.dll!UnknownFunction
0x00007ff77bfdffe7 Tower-Win64-Shipping.exe!UnknownFunction
0x00007ff77bfa5f3a Tower-Win64-Shipping.exe!UnknownFunction
0x00007ff77bf756c0 Tower-Win64-Shipping.exe!UnknownFunction
0x00007ff77bf754a8 Tower-Win64-Shipping.exe!UnknownFunction
0x00007ff77d1ee3c1 Tower-Win64-Shipping.exe!UnknownFunction
0x00007ff77d215ff7 Tower-Win64-Shipping.exe!UnknownFunction
0x00007ff77d2161b6 Tower-Win64-Shipping.exe!UnknownFunction
0x00007ff77c74a166 Tower-Win64-Shipping.exe!UnknownFunction
0x00007ff77c748876 Tower-Win64-Shipping.exe!UnknownFunction
0x00007ff77c74a643 Tower-Win64-Shipping.exe!UnknownFunction
0x00007ff77c5e2f1a Tower-Win64-Shipping.exe!UnknownFunction
0x00007ff77c735af4 Tower-Win64-Shipping.exe!UnknownFunction
0x00007ff77c7324d9 Tower-Win64-Shipping.exe!UnknownFunction
0x00007ff77bed1a93 Tower-Win64-Shipping.exe!UnknownFunction
0x00007ff77c96e9f2 Tower-Win64-Shipping.exe!UnknownFunction
0x00007ff77c96ea78 Tower-Win64-Shipping.exe!UnknownFunction
0x00007ff77bff4357 Tower-Win64-Shipping.exe!UnknownFunction
0x00007ff77bff4254 Tower-Win64-Shipping.exe!UnknownFunction
0x00007ff86db97374 KERNEL32.DLL!UnknownFunction
0x00007ff86eb5cc91 ntdll.dll!UnknownFunction


Notes / Media

Other misc. notes about the bug. Picture or videos are appreciated!

Please use the crash reporter when reporting crashes, it’ll upload various information about the crash so we can debug it faster.

As for this crash, it appears to be a render thread crash which could literally be anything. I’d suggest verifying your game cache.