Best in bags removing trinkets completely

When I run best in bags on my Balance Druid spec, the results always removes the trinkets completely. My equipped trinkets may not be best in slot but they are certainly better than no trinkets at all. Why is the optimize doing this?
It seems to flow through to the other tools too - Upgrade Finder suggests the same trinkets that I already have equipped and tells me that I’d get a 7% increase in DPS. What’s going on?

I think a Snapshot ID would be useful for this case to see exactly what could be being missed in the setup; From BiB, move to Help & click Create Snapshot, then post the string created here to allow for better assistance.

Thanks, in advance.