Fence setting ignored

Geo fence is set at 300m but quad always stops at about 50m. Switching flight modes after hitting 50m enables me to fly further but then hits another fence about 20m further. Have written and re written (and saved) parameters but this still plagues me. Any suggestions please.

Please post flight logs

Hi, thanks for replying, 2019-11-11 15-23-12.tlog (260.3 KB) tlog