If you're wearing an elytra while In F3 back when you hit the ground if you're looking up your camera angle will look under ground and you will be able to see any air pockets underground
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Jonathan5733
MCPE-71929
Xray glitch with an elytra and F3 back perspective
Resolved
Duplicate
0
Jonathan5733
migrated
(Unassigned)
Unconfirmed
Multiple
1.14.60 Hotfix
Retrieved
The main ticket for this issue is now MCPE-85052, which describes this in more detail