Sound Bug

So i've started playing again since S3 and very very often I've been having a sound bug where the game stops having sound, no music, no sound effect, nothing basically, before in S1 and release of the game and I didn't have this, so my question is, does someone else have this or have a fix? is it a known bug that they are working on, on a side note sometimes the graphics also bugs a bit and the shadders are all messed up but thats since launch, now its way less frequent then at launch but still coming up from time to time