Overbridge hates my A4

So I have a weird issue.

I used to have OB working fine on my PC then the other day I noticed that changes made on the PC no longer effect the A4.

At least for the most part.

I can still manage my library, naming, sound browsing but just nothing else.

Everything is connected or the sound browser would surely not function.

Can anyone offer any advice.

I have reinstalled OB and Ableton with no change to my situation.