[FAWE] Schematic paste doesn't work sometimes.

[merry meadow]

Session build code:

fun newSession(world: World): EditSession {
    return FaweAPI
        .getEditSessionBuilder(world)
        .fastmode(true)
        .limitUnlimited()
        .allowedRegionsEverywhere()
        .checkMemory(false)
        .build()
}

Schematic paste code:

fun pasteSchematic(clipboard: Clipboard, location: Vector, world: World) {
        val session = newSession(world)
        val operation = ClipboardHolder(clipboard, world.worldData)
            .createPaste(session, world.worldData)
            .ignoreEntities(true)
            .to(location)
            .build()
        Operations.complete(operation)
        session.flushQueue()
    }