MOGRT behavior (error) with images on transparent background

Hello, masters and gurus and everybody!

Just discovered a strange behavior of MOGRTs containing transparency. Has anybody had similar problems before?
A short description. Two MOGRT templates. The first contains semitransparent background and a couple of images with transparency. The second one contains just one image, with no background. Settings are identical. When importing in Premiere and trying to make a composition back on the background - results are different. Images change colors!

There are all the project files - I create an empty and minimized project, with no animations, to be sure it contains only minimum assets involved in the error. There are my exported MOGRTs, but still AFX project where everybody can check and re-export them again. And also there is a Premiere Project, where it is easy to see, how the problem appears.

It would be very interesting to hear any suggestions.