Trouble with Turn Tracker

I am missing something obvious but darned if I can find it in the forums here.

I’m trying to set up a turn tracker for a game with 3 nested levels: Year – Month – Fortnight. I have each sub-level set up as a list (not a counter), each is sub-component of the level above it (and Turn at the top). Message format is the default $level1$$level2$…

I want the turn to increment from say 1940 January I >> 1940 January II >> 1940 February I etc. But instead I have only two turns that show, something like 1940 January I and 1941 December II: basically the start and end dates of the game with no turns in between. And my mistake is…?