So I decided to experiment with this mod, right? thought it might be interesting to use with an Origins mod add-on, one of the ones that makes you super small - carve out little houses for myself out of the blocks. But whenever I use the chisels on blocks to try to carve stuff, the blocks turn invisible. The mesh is still there - I still bump into the blocks like I should and see the edges of the block highlighted - but there's no texture, just looks like air. Is this a bug or is there something else I should be doing with the mod to make the blocks visible again?

Never mind! Didn't read the install instructions properly, and I didn't install Ividium or whatever that other mod is called. Problem solved! Sorry about that!