Reverting a material through source control on Mac causes the thumbnail to become distorted

The thumbnail on mac becomes distorted when the material is reverted through source control.

This does not occur on windows and is not a regression.

Opening the Material or right clicking on it makes it return to normal

1. Open a project in the editor on mac
2. Connect to P4 source control
3. Create a material and check it in
4. Open the material and add a vector node to the graph
5. Change the vector color and hook it up to base color
6. Save the asset and submit it to source control
7. Change the color of the vector node
8. Save the asset and choose to Check out Selected
9. Right click on the asset in the content browser and under source control choose revert

Result: Thumbnail image is a distorted color

Expected: Thumbnail reverts back to its original state