Thanks for the link. Looks like gstreamer internal handling of its audio pipeline. That might be the most probably problem here too. Gstreamer side might also have some device specific android bits doing decoding and ending up somehow wrong.
In other words, something like ringtone or some other alarm tone playing something that ends up being stuck, then the next feedback attempt on pulley menu getting also the app stuck.
I tried the Asan stuff as attempted there, no results. With valgrind I fixed some uninitialized data sent to vibra device, but I doubt it has an effect for this.
Ogg files might be related on some devices by the decoding gstreamer elements, not sure if that’s the case here.