Problem with QA in models 2020

Hi all,
We are having a problem with a video app, in the approval by the Samsung QA
Samsung approved for all models except 2020 models
They say the videos don’t work.
We try with mp4 and HLS and it follows the same problem
We tested it with the version 6.0 emulator and it works fine.
We use avplay in a web application
Thanks