When equipping/removing armor from a zombie nautilus, it plays no sound. This also occurs when feeding one a pufferfish. These issues do not occur for regular nautiluses.
MCPE-229446
Some sound events don't play for zombie nautiluses
Resolved
Fixed
1
(Unassigned)
1501147
Community Consensus
Multiple
1.21.130.20 Preview
1.21.130.27 Preview
Retrieved
can confirm on windows. This also affects when removing a saddle from both a nautilus and a zombie nautilus