ConnectIQ Fields (1/2)

The watch says I already have 1 of 2 connectIQ fields in use but I'll be damned if I can find it.
I first removed all data screens, then removed all activities, removed watch faces etc - turned off / turned on, nothing - still says 1 of 2 in use.

Is there any way to see what ConnectIQ field is currently in use? I tried looking via Garmin Express, with no luck.

Also, am I correct in understanding that I can have two connectIQ fields *per activity*, not on the watch overall?
IE, two fields in 'Running', two fields in 'Biking' etc. The '1 of 2' fields message showed up on every activity (before I removed them) which seems to suggest a 'max of 2 for the entire watch'.