It’s funny because I just called ASCAP yesterday because I have that exact same issue. For me, I’m waiting for a cue sheet to be filed by CNN for a performance that would be paid in the upcoming writer and publisher distributions. The network is saying it will be filed soon but perhaps will not meet the deadline to be included in the upcoming ASCAP distributions. ASCAP told me that as long as they receive the cue sheet within a year of the scheduled distribution that they will process it retroactively on the next scheduled distribution. This of course includes the fact that any paid ASCAP performance has to show up on their surveys.
Hope my response was helpful.