I'm trying to add Netherrack to the Filter Upgrade. I open the filter using right-click, take the block from my inventory and place it in the filter. Instead of the ghost block appearing in the filter (I assume that's how it works), nothing appears. I've tried it with cobblestone as well, and same issue.

Version: SimpleQuarry-1.21-21.0.3
Modpack: Opolis Inc vB4.0