selecting Blocks.BEDROCK for "blocks that this ore can replace" for a custom block crashes the game on world gen

Status
Works as designed
Issue description

selecting Blocks.BEDROCK for "blocks that this ore can replace" for a custom block crashes the game on world gen

Issue comments

This is an issue with Minecraft. It seems that it does not support replacing BEDROCK. If I find a workaround I will fix this.

Goodluck - fix the crash if you can, but if you can't fix this, see if you can make bedrock not listed under "blocks that this ore can replace" to prevent someone from choosing it and crashing the game.

Also Klemen do you think it would be possible to create sound filters in MCreator that could be brought into and used in minecraft via mods. Someone created a mod that changed some properties and added a few sound filters like reverb in caves in minecraft back in 1.6.

a example i want to use this for it to have a reverb filter applied to all sounds in game in a weird underworld purgatory like custom dimension that has a errie underground wind for music and uses nether like generation and the only sounds you hear are the echoing sounds of stepping around and breaking blocks when you break them in this dimension.

You will most likely need to make own sound system implementation to support filters. This might be possible, but not in MCreator. You need quite some DSP and programming knowledge to do this.

I selected Blocks.COAL_ORE for "blocks this ore can replace" and it doesnt work even set the amount of ore Groups per chunk to 25 still doesnt spawn

The issue with selecting rare blocks is that you need really large numbers for them to ever spawn as spawner needs to hit the right block in order to replace it and hitting ore block randomly on the world is pretty rare.