Missing Data on flight log departure to 6000 ft

Good morning … Until recently the complete log of an aircraft from departure until arrival was available… This appears to have changed , now only providing data fro 6,000 feet onwards … Any reasons ?

Lack of ADS-B coverage? It is line of sight so at low altitudes you need a nearby receiver.

Would help if you had a specific pair of flights in mind.

any flights coming out Melbourne International Airport Melbourne Airport / Australia (MEL/YMML)

any information on reason for missing data ???

Looks like a flight tracking glitch; we have data down to near ground level, but the tracklog is not picking it up. Thanks for the report.

Since I believe you’re right by YMML you could run your own ADS-B receiver and collect data directly if you want all the raw info; see flightaware.com/adsb/piaware/