Inventory items go invisible when clicked, while proxy inventory menu is open

[Konicai]

Describe the bug

When an inventory menu is open from Velocity or BungeeCord, any items in the player's personal inventory will become invisible (client-side) if they are clicked on.

This will have to be fixed with a plugin message from the proxy, telling the backend server to refresh the player's inventory.

To Reproduce

1. Open proxy inventory menu
2. Click on item in personal inventory
3. It disappears
4. Drop the item from your hotbar or click where the item used to be with a different item and the client will realize it actually still exists

Expected behaviour

The client doesn't think its gone or the client is refreshed on its inventory contents after clicking

Screenshots / Videos

No response

Server Version and Plugins

Protocolize, etc

Geyser Dump

No response

CrossplatForms Version

1.2.0

Additional Context

No response