Replay playback often skips hitsounds, and in general, no beatmap hitsounds is ever loaded/used by opsu. Also the offset seems to get off-set by the speed in which you play the beatmap.
On HTC 10 (7.1.2 Stock, 8.0.1 LineageOS), SGS3 (6.0.1) and a Redmi 4X (7.1.2)
Strangely on HTC 10 running 8.0.1 I don't get the skipping hitsounds bug, but still have the other two, while on 7.1.2 stock all three bug exists.
Replay playback often skips hitsounds, and in general, no beatmap hitsounds is ever loaded/used by opsu. Also the offset seems to get off-set by the speed in which you play the beatmap.
On HTC 10 (7.1.2 Stock, 8.0.1 LineageOS), SGS3 (6.0.1) and a Redmi 4X (7.1.2)
Strangely on HTC 10 running 8.0.1 I don't get the skipping hitsounds bug, but still have the other two, while on 7.1.2 stock all three bug exists.