So, I looked around google and found nothing helpful. First of all, I don't have the atronach stone or perk, I'm aiming at the right distance on flat land, I let the spell completely charge before casting. I hear the sound of the spell, everything looks purplish, but nothing shows up. I don't have any mods that would deal with magic, all my mods are graphical, with a few quest mods.

What platform are you on? Has summoning ever worked for you in your current game?

I'm on PC. And it has worked before. It was doing the same thing yesterday.

It works on my other characters, I just found out.

Of course, you have mods; I wasn't paying enough attention, obviously.

Have you tried a new game? It certainly sounds like a mod interaction problem. Have you upgraded USKP or added anything new?

If it were me, I'd try a new game without any quest mods.

That's good. There must be some difference on that character; did you remove or change a mod on that one? Because something bad must have been baked in that save. Don't re-save any of your old working saves until you figure it out.

Not that I know of. It's always my khajiit files too.

Fixed it!!! I changed my standing stone ability to The Apprentice. Which is a little odd because I had The Lord stone, not Atronach. The familiars won't summon, but the atronachs do, so that's fine with me, the familiar isn't so powerful anyways.