What’s up with the app audio?

For the last 30 mins every video on my fyp, friends tab, or likes won’t show the audio. All have is a black circle that says “this sound isn’t available” as if it was silenced. I have 3 accounts and only 1 of them can see audio; the other 2 accounts are stuck like this. My WiFi is fine and it happens on data too. Curious if it’s just me, or if it’s because they’re changing the profile layout and maybe the app is glitching?