Schematic Paste Issue

[AilfeLirik]

There's a problem with the schematic paste; When you paste them every blocks becomes not existing block, some placeholders.
My collaborator has already reported this a few weeks ago on your discord server (link here: https://discord.com/channels/365202594932719616/461137353482698752/1101579525629939752 )
As you can see below, the pasted schematic becomes full of placeholders.

[6kek6]

I have a similar situation. Format: mcedit.

[xSuperr]

+1

[dadodasyra]

This is really anoying.. If someone know how it can be fixed pls PR