Ignored land command

I’m new here and I’m starting with drones. I have Fixhawk controller installed on quadcopter with latest beta-rc2 firmware version(download and installed today). Today I have crash. Drone after few second after start flew high and then fell to the ground. In logs I see that there was command RTL and after that LAND. But he didn’t try land he just fell to the ground. Why he didn’t try to land and ignore LAND command? Do you have any ideas?

Please provide tlogs and/or dataflash logs to help troubleshoot your issue.