I'm going to place this here, as I feel that the thread followers are the best to provide an answer.
I use FR24 for my movements logs, however I do have problems with certain aircraft. For example A321 G-HLYA seldom shows a flight number and, when I switch to Flightaware I get very few reports.
What system do you use to obtain details? For an example G-HLYA positioned MAN-LBA yesterday as per this thread #1648 as, apparently, EXS048A but yhat flight number does not show on either FR24 or Flightaware.
Any help would be much appreciated.
SD