Gamma Issue between C4D versions R19vsR21

Hi all
As you can see there is gamma issue between two versions of C4D. Both file and Corona versions are exactly same. I have tested it and got same result on two different PCs.

Which Corona version, and which OS? Does it happen for all scenes, or just this one? Any LUTs used in post? Saved from PV or VFB?

-It is latest v5 under Win10-64bit.
-Sadly I can not try Now on real scenes, just tried make a simple one(a plane and a sphere) but could not manage to produce the issue again.
-yeah I did use a LUT
-Saved from PV since I use Takes

I can send a link via Pm for my scene If you wanna check into it deeply? I could not figure out what causes the issue.

If you can send the scene, please use the Private Uploader - Chaos

(A PM to me is not so useful, as I am not part of the support team, who are the ones who really need to have a look - makes it accessible to everyone, support, me, developers, etc. if you can use the Private Uploader). It would be great if you are able to upload the example, as a scene is always the biggest help in tracking down what is going on!

Thanks!

Hey I’ve just uploaded a test file in the name “1578577736_gamma.rar”
Please try it on both versions R19 / R21 and see the difference.
Thanks!

Thanks for the scene file. Tested and confirmed.
(Internal ID=444926956)