AE decreasing quality of footage

[Vito23415602vtae]

Hi! Im experiencing some weird problems with AE today.
My goal was to stabilize motion through AE. I imported an "untouched" file:
Flog, 10 bit, 4:2:0, Rec. 601 (NTSC).

As soon as I import the footage I seem to notice a lack of detail in the backgroung of the video.
I have the resolution to full.
Not only that, there seem to be color shifts in the shadows, which are a lot more visible after color grading.
I tried literally everything I could find on web to correct the problem.
I changed settings like working space and render color, tried every possible bit depth - also uncompressed.
And nothing. I also tried adding the video directly to media encoder, encoding it to different codecs etc. and still the same result. Did try rendering it from AE through ME, since the dynamic link doesnt work either.

The weird thing is, if adding the video directly to premiere, everything seems fine - also the details and no color shifts whatsoever even if color grading.

I can provide additional information if needed, because im really at the end of my knowladge.
If someone could help or just tell me how to import and export a video in AE without compromising the quality, id be really glad!

[OussK]

If the file works fine on Premiere Pro, have you tried using the dynamic link to send it from PP to AE? This way, you might be able to stabilize the file in AE and do the final render from PP.

[Vito23415602vtae]

Thanks for the answer. I did not try this method since Im experiencing problems with connecting to the dynamic link server too. Though I did try to export unedited footage from premiere in Prores 422hq and then importing it in AE, stabilize and render. And the file is as good as it should be. So there is a workaround. But I just wonder why such a problem with AE.