Harvesting weeping vines with silk touch (I tried with diamond and netherite pickaxes) corrupts them in the user's inventory. They appear to place, but do not remove from inventory. Reloading causes them to disappear, bone mealing them causes them to disappear, breaking them causes them to disappear without dropping and without dropping ghost vines below. They cannot be dropped from inventory without removing them manually with the inventory open. Having them equipped prevents interaction with chests/hoppers/etc.
Also: scaffolding glitches out around these ghost vines. In particular, placing scaffolding on one of them replaces all connected ghost vines with ghost scaffolding.
Thank you for your report!
We're actually already tracking this issue at MCPE-65522, 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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