After multiple patches, this same bug still persist for me. The footstep audio simply cuts out completely. It used to be I could fix it by reloading a save, or restarting the game, but now it is consistently broken no matter what I do. Does anyone else have this? Seems very strange for such a noticeable bug to persist for this long.

Please disregard this thread. I found the issue was related to a mod and have now fixed it.