Mmh, only one these statements can be true?
I understand it as just because my feeder is assigned or synchronized to a mlat group it, it does not automatically receives all mlat data generated by feeders in that group, only when it is actually used for a specific calculation.
And whether it is actually used or not is pretty random, even if one decides to let the sites data to be used for mlat, it might not be used every time, not even all the time for the same aircraft, and when it is not used, you won’t get the results, after a grace period, hence the truncated tracks on the map.
Or are we completely misunderstanding each other here?
Edit: tried to clarify, not sure it worked