@triquetratrip Thanks for the update, I'm pleased that the issue is resolved and the rumbling of thunder 
has finally gone!
I'll pass your comment along to Ubi-Mark and the rest of the team who responded to you 
@triquetratrip I'm sorry to hear that the issue has returned. We haven't received any other reports of this, therefore it does appear that the issue is with your save data. You previously mentioned that when loading an older save the issue was not present.
Can you remember if you encountered any game crashes prior to when this issue first occurred?
Could you try doing what you did previously, load an older save then load a more recent save, then if the sound of thunder stops try creating a new manual save, close the game then load the new manual save that you created and see if the sound of thunder has stopped.
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