So I've used Schematica in the past and never had an issue. However I've recently moved into a new modpack and wanted to transfer some things. (I'm in Single player, creative, and made sure the mod is enabled, and don't have optifine.)

The Issue: I've got schematics in the folder, but regardless of what I click, nothing happens, no crash, no outline, no problem except that nothing happens.

I've tried new schematics, mine, but nothing happens.

Ditto. However, I think it might be a block from a mod you're missing in the target mod pack?

It would be nice if there was a way to get a list of needed mods for a given schematic.

I don't know if its that or not. The schematics I'm trying to load are full vanilla minecraft

Can't help but having the same problem. New world and no ghost image. Just took a quick schematic of a tree in this new world and that bit worked fine but will not load it. Gonna carry on poking at it. If i figure anything out I'll let ya know.

im having the issue and still need help, any updates?

For me i think it's a conflict between the biome mod and scematica. It's the only thing that's different between a world where schematica works and once where it doesn't. I think. I may be mistaken as i haven't logged into MC for a month or 3. Will check later.