You can manually add the codec to your player to fix playback issues.
: Installing this codec restores support for advanced audio formats including EAC3 , AC3 , DTS , MLP , and TrueHD . How to Install the 1.49.0 ARMv8 NEON Codec Mx Player 1.49.0 Armv8 Neon Codec Zip File
MX Player requires a custom codec that matches both the app version and your device's processor architecture. You can manually add the codec to your