if you kill yourself with the /kill command, you will get yourself "stuck" in the void and won't be able to see/interact with blocks. If you relog in your world, everything will be back to normal.
MC-138765
/kill command issue
Resolved
Duplicate
0
Axel Favreau
(Unassigned)
Unconfirmed
Minecraft 18w44a
Retrieved
Please do not mark unreleased versions as affected.
You don't have access to them yet.