I think this raises from the fact that they are the same id but different damage values.
RP2pr2 Marble is 122:0 and Basalt Cobble is 122:3 so I guess it just doesn't pay attention to the damage values.
![](https://forum.industrial-craft.net/core/images/avatars/0f/305-0fa19ef7b30369c781b9434dffb5dec647b83651.gif)
[Bug 1.15, 1.23] Miner placing RP2pr2 basalt cobble turns it into marble
- BloodyRain2k
- Closed