Hi Shaun,
Thank you for the fix!
I suspect the issue with MRQ is that our scenes are quite heavy and we are using USD with 1 step subdiv for our Characters. I think MRQ for some reason is more Memory intensive and causing our machines to run out of Vram. While this doesn`t happen with MRG.
If the fix you posted addresses the issue. We’ll just stick to MRG.
I’ll report back if this fixed our issue.
Thanks!
In MRQ under Game Overrides, Texture Streaming is disabled by default. In MRG, it is not disabled by default. Disabling Texture Streaming is the number one cause of VRAM issues I see with MRQ. When you disable Texture Streaming, UE will attempt to load every texture (along with every LOD) onto the GPU. So, depending on how large you set your texture sizes, it can use a lot of memory.
I would check Game Overrides and see if it is indeed disabled. If it is, it might be worth a quick test to enable it again and see if the renders start to go. Also happy to look at a crash log if you want to DM it to me. 
Just thought I’d chime in to thank you again.
As this fixed the issue on our end. 
Great to hear! We are putting it in the hotfix 5.8.2 hotfix coming out in a couple weeks as well.
Thank you Shaun! 