PROBLEM - my .mogrt changes the colorimetry of my exported video

Hello,

That I explain my problem: for my reports I have to apply animations when, for example,
 I display the name of the interviewee. To make the process faster I created some .morgt on after-effect 
which I then added to the essential graphic objects of premiere pro. So far so good.
The problem is: on the video, once it is exported, when my animations appears and then disappears,
 a veil appears then disappears on the whole image as well. I initially believed in a very
 transparent background problem but none of that, except my graphics and my texts, 
nothing composed my animations. I also thought of a graphics card problem but it is not, 
I exported on different PCs and OS. To visually identify the problem I put a youtube link where 
the problem is very visible (at 0:26 and 0:34):

https://www.youtube.com/watch?v=3bqDosjAM7M

I appeal to you then, is it a problem with the setting of my compositions on after-effect? 
of my export settings on premiere / media encoder? Because when I create .mogrt on the
 PCs and for the projects of the company where I work, everything is fine,
 I only have this problem on my projects and personal machines.

Thank you 🙂