I just checked this. I have VIP.
I am able to watch multi-language content in ENGLISH audio track.
(For example: Loki, Avengers, Luca, etc. can be watched in English).
Content that only have English audio track is not working.
(For example: WandaVision, What If?, etc.)
Can anyone approve my finding?
I think this is happening because of the plan changes effective from 1st Sept.