Well, I'm not 100% sure, but I think tracking never timed out that long,
also have a look at the number of messages in the screenshot I've included
I think it's impossible to receive 941 messages from 16:17:06 till 16:17:06
( just 1 second )
I've also noted that corrupt messages containing garbled flightnumbers leads
to huge numbers of flights for particular aircrafts....
I'm sure this feature will improve in the near future.....
Marinus.
Included another screenshot for you to analyze: