So the 1.7.10 version of Blood Magic has a quirk/bug remaining where certain blocks, when broken, emit purple checkered textures. The source for the mod can be found here. There doesn't appear to be any way to fix the issue outside of potentially digging into these source files, at least from what I can tell.
As a complete novice and a simple mod-user, how would I go about fixing this myself? Is there even anything I can do about it? (One immediate example for a block exhibiting the broken particles would be the Alchemical Calcinator.) Though not exactly game-breaking, the issue annoys me quite a bit.
This would normally happen if a block has a custom model but no block texture assigned (the vanilla break particles are derived from the registered block texture). Learn to make a standard block and how to use the IIcon system, and you can probably figure it out.
Alright, that gives me a place to begin - thank you!