Do you have access to a different DAP to see if it can index the 1TB card? Do you have access to a different microSD card to see if you SPK can index it? That way you can isolate whether the problem is with the SPK or the card.
Thanks for the suggestion, I had access to another 1tb card briefly the other day and I had the same issues with it.
I have no other DAP at the moment, though I purchased a WM1A which will arrive next week, since I got a bit tired of waiting on this to work.
Hopefull 3rd time is a charm, since I formatted again, and copying files in smaller groups as opposed to the whole 800mb folder.
we'll see.
The noise/click on changing tracks/transitions is still there, though.