Hello check your configuration and see if it'd setup to land when signal is lost. you can have it setup to either hover, land or RTH. If I remember correctly. from what it looks it signal was lost for more than 3.4 seconds and autoland kicked in.
A 00m 00s 0.0 ft 0 ft Mode Mode changed to GPS_Atti
B 00m 02s -0.7 ft 0 ft Mode Mode changed to AutoTakeoff
C 00m 02s -0.7 ft 0 ft Tip Tips__Taking Off
D 00m 08s 6.9 ft 2 ft Mode Mode changed to GPS_Atti
E 04m 08s 107.6 ft 1,925 ft Mode Mode changed to GoHome
F 04m 08s 107.6 ft 1,925 ft Tip Tips__Going to the Home Point
G 05m 31s 129.6 ft 11 ft Mode Mode changed to AutoLanding
H 05m 31s 129.6 ft 11 ft Tip Tips__Going to the Home Point
I 05m 36s 127.6 ft 23 ft Tip Tips__Landing Canceled
J 05m 36s 127.3 ft 24 ft Mode Mode changed to GPS_Atti
K 09m 32s 127.0 ft 2,739 ft Data Loss Downlink data connection lost for 6.1 seconds
L 09m 43s 126.6 ft 2,738 ft Data Loss Downlink data connection lost for 6 seconds
M 09m 43s 126.6 ft 2,738 ft Warning Warning:Command Timeout
N 09m 47s 127.0 ft 2,724 ft Data Loss Downlink data connection lost for 3.4 seconds
O 10m 10s 125.7 ft 2,340 ft Mode Mode changed to AutoLanding
P 10m 10s 125.7 ft 2,340 ft Tip Tips__Landing
Q 10m 17s 118.4 ft 2,336 ft Tip Tips__Landing Canceled
R 10m 17s 117.8 ft 2,336 ft Mode Mode changed to GPS_Atti
