Motion Graphics (MOGRTS) causing color shift

[Element7s]

I've had this issue for a while now and I need answers.

Video in question:

https://www.youtube.com/watch?v=7RTceoeiink

The MOGRTS I'm using for the various animations I'm using for lower-thirds and titles are causing the video color to shift. If you don't want to watch the video I've also attached 2 frames; when the motion graphic is on and when it has finished. You can see a clear color shift - and I have no LUTS or color grading on this video.

My export setting is simply "Match source - high bitrate" with the source recording at:
1920x1080 - NVENC H.264 - 10Mbps - CBR

This only happens on export as well. When I'm previewing the timeline, the colors remain unchanged and there is no visible color shift as the motion graphics play over the video. This only happens after I render the file out. Can someone please explain what's happening?

[Joost van der Hoeven]

Looks like your mogert swithches the renderer to 8bit or a different color space. Can you please share your system info? Like OS and version, CPU, RAM, GPU vRAM, Pr version? Thanks. 

Can you share the Mogurt here? And just to be sure can you share a screen grab of your sequence settings. And can you share a screen grab of your export settings, just to be sure.

In the mean time your probably will not have this issue when using Mercuy Playback Software Only.

[Element7s]

System:

Intel Core i7-6700 @ 3.4GHz

32GB @ 2133mhz

Windows 10 Home 19041.804

GTX 1660 SUPER 6GB GDDR6 (Driver ver 3.21.0.36)
Premiere Pro v15.0

The problem also seems to go away if I go to the Source clip and uncheck "Basic Correction" under Lumetri - which is just odd

Link to MOGRT since I can't attach it: https://drive.google.com/file/d/1lSHcuVsV8vkLl4XJg7NmUGkUVophUGe_/view?usp=sharing