Why are some blocks invisible in my Minecraft Modpack?

I have my own modpack for minecraft 1.7.10 zsm asked and I noticed that some blocks of e.g. "Chisel" or "Carpenters Blocks" and "Thaumcraft" are simply invisible I've already looked at the textures whether that is something missing or so but I did not find anything would be very nice to me because someone could help further thanks.

Often the problem lies with the mods. Some mods use the same ID, so they override each other. Some mods therefore load the textures of other mods and are therefore flawed.

Simple Trial & Error (So try as long as possible). Mods in, mods out, etc.

Ok, thanks a try.