See previous bug report #246
It is not a tag issue
I tested this today after a new report from Pauseacorn
I tested this in IDE so the only mods installed are LDT dependencies
The red mushroom block, brown mushroom block, and mushroom stem allow you to use them in the architect's cutter as default
but they do not RENDER
there's our issue
so you get invis for wherever the mushroom parts should be

See previous bug report #246
It is not a tag issue
I tested this today after a new report from Pauseacorn
I tested this in IDE so the only mods installed are LDT dependencies
The red mushroom block, brown mushroom block, and mushroom stem allow you to use them in the architect's cutter as default
but they do not RENDER
there's our issue
so you get invis for wherever the mushroom parts should be