Minecraft Pocket Edition 0.16.1 no hud

Check the hide GUI option in the settings.
It is in video
Turn on advanced settings switch
Turn off hide GUI if it is on.

Can you confirm that the hud switch is enabled?

Devs, kindly refer to my post on this. I believe it's related and I've put as much detail as I can to help you guys be able to troubleshoot and resolve the issue.

MCPE-18957

This ticket has been resolved as 'Cannot Reproduce' as it has no response was received recently.