Disappearing markers

Hi,

I'm encountering a problem on Premiere Pro (last version: 14.1.0/MacOS Mojave). I work a lot with markers. On each of my PP projects, I import AE compositions that I have created. When I place markers on them (in PP), save the project and re-open it later, some of the markers disappeared.

And that's very weird: only some markers are missing, not all of them. And this problem happens only on AE Compositions imported. On my video footage imported, all my markers stills here and works perfectly, I never encoutered a problem with markers on video files!

I try to reimport all of my AE compositions: the problem persists. I try to place composition markers on my AE compositions, hoping that I find them in PP, but nothing happens.

Any solution, please?

Thanks.