Animation out of sync to audio randomly

I can't find anything about this anywhere!! But ill load up my project, click play to just review it, itll be the correct speed. And then ill go back to play it a second time and my audio and animation will be COMPLETELY out of sync for no reason, i havent changed a single thing! It's really irritating because this happens several tiimes throughout animating my project and I'll have to delete or add frames just to keep editing. It's like my sound moves on the timeline but it stays put and I haven't touched it. Audio is set to stream, and my program isnt lagging. The first few frames will be in time and then the rest will be like i had frames added or deleted and I don't understand why. Sometimes it randomyl fixes itself, but most times I have to manually redraw and add frames or delete them. Is there a solution to this?