Thank you for posting what solved it for you.
Can you check if the Always On setting was used via ASIO or MME?
I had weird issues with 'MME Always On' that seemed to not affect other users.

ASIO Always On seemed OK for me (as long as I was only using one music app at a time, which can be expected with ASIO).

Just wondering, but glad you got it fixed.
Make your sound your own!