When the player equips netherite armor the jump boost given by wind charges is reduced (this does not happen in java edition), this may be due to the knockback resistance of the netherite armor, but I think the knockback resistance to wind charges should only apply if the wind charge is thrown by other player or the breeze.
NOTE:
It seems to work as intended, but I still think that the knockback resistance should only apply if the wind charge is thrown by another player or by the breeze, so using netherite armor won't make the wind charges a bit useless.
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Duplicate of MCPE-181519.
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Thank you for your report!
We're tracking this issue in MCPE-181519, so this ticket is being resolved and linked as a duplicate.
That ticket has already been resolved as working as intended, which means this is not considered a bug and won't be fixed. Please do not leave a comment on the linked ticket.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support (Technical Issues) – 📧 Microsoft Support (Account Issues)
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki