Bert, further to yesterday's post, I presume if this problem occurred with every file, you would have said so. So, I'm assuming the traffic file you sent me is the only one (or at least one of a few).
I note that the flight plan and traffic files you sent me refer to a couple of non-stock airports, namely EDB1 and EDB2. Please verify in the AirportList.dat file that the records for both these airport end in "|EDBn|". If the final vertical bar(|) is not there, please add it by hand and check whether or not the problem still exists before doing anything else.
If the bar was not there and the file was updated automatically, please send me a copy of AirportList.dat and, if it exists, also AirportList-Updates.dat, via e-mail (to avoid wasting space on the forum).
Thanks
Don