Sometimes as I go thru the nether portal, the armor display over the health bar disappears. As soon as the armor gets updated this gets fixed. Don't know what's causing this but it seems to only affect teh armor bar.
MC-118521
Armor Bar nether portal bug
Resolved
Duplicate
0
Drezzy
(Unassigned)
Unconfirmed
Minecraft 1.12
Retrieved
This issue duplicates MC-88179.