AC-3 audio packed in mp4 container does not play through MSE on Samsung TV 2017

TV model: UE40MU6100
Firmware: T-KTMDEUC-1290.3

Test content: https://support.smartlabs.tv/DTE_DASH_AUTO/TESTCONTENT/TOS_AC3_CLEAR/playlist.mpd

I play this content using MSE. Video plays but no sound. Help me please.
The same content plays successfully on Samsung TV 2018, 2019, 2020, 2021.