There is a bug where on realms netherite armour and other netherite items still burn in lava but for some reason netherite blocks don't, this is only the case for realms. I tested it on single player and no netherite items burnt in lava.
MCPE-87393
Netherite items burn in lava on realms
Resolved
Duplicate
1
Thank you for your report!
We're actually already tracking this issue at MCPE-84796, so I will resolve and link this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
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