Currently running SEPM vs. 12.1.2015.2015 on Server 2003 R2.
We have licenses for 120 seats but only 100 are listed in SEPM after loading the slf that came from symantec. I had the same problem last year. SEPM just doesn't seem to want to load more then 4 licenses. We have 5 with varrying amounts.If I manually install the other 2 licenses using the add new license option vs. the load slf file I can get one of the other licneses to display and that is it.
The .slf file only adds 3 licenses in to into sepm.