Make sure that the distance limit, in app, is turned Off.
Maybe stuck in beginner mode, like said, try update or reinstall of Go 4. Or return for new. Sump not right
Are you waiting for full gps ‘the home point has been updated, please check it on the map’ before takeoff? Even so, should go higher than 50’ in Atti.
Does this happen everywhere you fly? Wondering if local interference could be responsible. No warnings, compass, etc?
Just guessing here. Might need to post the flight logs for review. Should show any errors. Good luck