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1.19.2 - Multiblock Handling, Custom block Function gets called multiple times before creating Custom Block


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Hello everyone, I'm making this post to seek help for my modded block,
It's a special block called FrozenBlock supposed to take the place of an old block, then after a set amount of ticks, it's supposed to revert its Block State, Entity, data... to the old block like this : 

The problem I have is that the system breaks when handling multi blocks (I tried some fix but none of them worked) : 

The bug I have identified is that the function "setOldBlockFields" in the item's "setFrozenBlock" function gets called once for the 1st block of multiblock getting frozen (as it should), but gets called a second time BEFORE creating the first FrozenBlock with the data of the 1st block, hence giving the same data to the two FrozenBlock :


Old Block Fields set
BlockState : Block{minecraft:black_bed}[facing=east,occupied=false,part=head] BlockEntity : net.minecraft.world.level.block.entity.BedBlockEntity@73681674 BlockEntityData : id:"minecraft:bed",x:3,y:-60,z:-6}
Old Block Fields set
BlockState : Block{minecraft:black_bed}[facing=east,occupied=false,part=foot] BlockEntity : net.minecraft.world.level.block.entity.BedBlockEntity@6d1aa3da BlockEntityData : {id:"minecraft:bed",x:2,y:-60,z:-6}
Frozen Block Entity set
BlockState : Block{minecraft:black_bed}[facing=east,occupied=false,part=foot] BlockPos{x=3, y=-60, z=-6} BlockEntity : net.minecraft.world.level.block.entity.BedBlockEntity@6d1aa3da BlockEntityData : {id:"minecraft:bed",x:2,y:-60,z:-6}
Frozen Block Entity set
BlockState : Block{minecraft:black_bed}[facing=east,occupied=false,part=foot] BlockPos{x=2, y=-60, z=-6} BlockEntity : net.minecraft.world.level.block.entity.BedBlockEntity@6d1aa3da BlockEntityData : {id:"minecraft:bed",x:2,y:-60,z:-6}

here is the code inside my custom "freeze" item : 

    public @NotNull InteractionResult useOn(@NotNull UseOnContext pContext) {
        if (!pContext.getLevel().isClientSide() && pContext.getHand() == InteractionHand.MAIN_HAND) {
            BlockPos blockPos = pContext.getClickedPos();
            BlockPos secondBlockPos = getMultiblockPos(blockPos, pContext.getLevel().getBlockState(blockPos));
            if (secondBlockPos != null) {
                createFrozenBlock(pContext, secondBlockPos);
            createFrozenBlock(pContext, blockPos);
            return InteractionResult.SUCCESS;
        return super.useOn(pContext);

    public static void createFrozenBlock(UseOnContext pContext, BlockPos blockPos) {
        BlockState oldState = pContext.getLevel().getBlockState(blockPos);
        BlockEntity oldBlockEntity = oldState.hasBlockEntity() ? pContext.getLevel().getBlockEntity(blockPos) : null;
        CompoundTag oldBlockEntityData = oldState.hasBlockEntity() ? oldBlockEntity.serializeNBT() : null;
        if (oldBlockEntity != null) {
        BlockState FrozenBlock = setFrozenBlock(oldState, oldBlockEntity, oldBlockEntityData);
        pContext.getLevel().setBlockAndUpdate(blockPos, FrozenBlock);

    public static BlockState setFrozenBlock(BlockState blockState, @Nullable BlockEntity blockEntity, @Nullable CompoundTag blockEntityData) {
        BlockState FrozenBlock = BlockRegister.FROZEN_BLOCK.get().defaultBlockState();
        ((FrozenBlock) FrozenBlock.getBlock()).setOldBlockFields(blockState, blockEntity, blockEntityData);
        return FrozenBlock;


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Fixed the problem by changing the way the OldBlockFields are passed to the FrozenBlock Entity :

public FrozenBlockEntity(BlockPos blockPos, BlockState blockState) {
        super(BlockRegister.FROZEN_BLOCK_ENTITY.get(), blockPos, blockState);
        this.frozenBlockPos = blockPos;
        this.frozenBlock = ((FrozenBlock) blockState.getBlock()).getOldBlockState() != null ? ((FrozenBlock) blockState.getBlock()).getOldBlockState() : Blocks.AIR.defaultBlockState();
        this.frozenEntity = ((FrozenBlock) blockState.getBlock()).getOldBlockEntity();
        this.frozenEntityData = ((FrozenBlock) blockState.getBlock()).getOldBlockEntityData();

    public FrozenBlockEntity(BlockPos blockPos, BlockState blockState, BlockState oldBlockState, @Nullable BlockEntity frozenBlockEntity, @Nullable CompoundTag frozenEntityData) {
        super(BlockRegister.FROZEN_BLOCK_ENTITY.get(), blockPos, blockState);
        this.frozenBlockPos = blockPos;
        this.frozenBlock = oldBlockState != null ? oldBlockState : Blocks.AIR.defaultBlockState();
        this.frozenEntity = frozenBlockEntity;
        this.frozenEntityData = frozenEntityData;


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