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Arduplane autoland

Hi I am not able to get successful autoland result. Am I overlooking something?
Can someone help?
The plane is a Twin engine AlbaBird
https://www.rcgroups.com/forums/showthread.php?3370815-Finwing-FPV-AlbaBird-Dual-Motor-official-owner-Thread-(easy-Two-hours-flight)

It flies well using the latest Arduplane. Hardware Pixhack 2.8.4
My log here
My param

Servers by jDrones