This is a repost from the Anki (computer version) forum; it was suggested that I post here.
tl;dr audio was working fine for several decks on AnkiDroid, but after the first sync with AnkiWeb audio is broken on AnkiDroid and on desktop Anki, but works in AnkiWeb.
I am having trouble with audio files associated with a couple of shared decks I recently downloaded (Korean Vocabulary by Evita, Korean Grammar Sentences by Evita). I originally installed them on my Android 4.4.4 phone and they worked beautifully--there are audio files associated with most/all cards.
Then I synced with Ankiweb for the first time, overwriting what I had there with what was on my phone. Since then when I try to study the cards on my phone, I see something like:
가방이에요.[sound:itsabag.mp3]
instead of the usual play button. I have checked and the files are still on my phone, under 'Device storage > AnkiDroid > collection.media' AKA '/storage/emulated/0/AnkiDroid/collection.media/itsabag.mp3'.
Similarly, on the desktop and web clients the cards do not play the audio, although the files exist on the computer (and presumably online).
I tried deleting and reinstalling the decks and they just end up in the same state, down to which cards need to be studied.
Any clue to what is happening? I haven't found records other people having this problem after a sync--perhaps Anki is looking for the files somewhere else and I can't find the config. I am a somewhat new user so I don't have a good feel for debugging Anki problems.
Up until this point I have been very happy using Anki and I hope to get back to using a functional setup on all my devices.