Pere, that's a very good question--not foolish at all. I'm trying to think of a time when / if the first bud of a multifloral Paph. blasted, whether the rest of them developed. For some reason, I want to say that they will, in most cases, but I can't be sure; I can't think of a specific instance when that happened. I think it's going to depend on what caused the blast in the first place, and whether the cause was local to the one bud, or whether there was root damage or a severe environmental change that would affect the entire spike. Maybe Jason or others can help here?
Pere, is there a specific species of Paphiopedilum you're talking about where you noticed this?