I use to be able to make MMF but the last two times it has been bad. The last time I had little white pockets of powdered sugar? Then, this time it looks dry but I actually think it had too much water in it? Do you think if I let it sit out some of the water will evaporate? It was looking smooth but then I added a little water because I thought it might need a little more and now it has a lot of holes all in it..any suggestions?

Have you changed any of your ingredients like the brand of powdered sugar?
The pockets of white sugar may mean you need to sift it first. I found that when I purchase boxed PS instead of the kind in the plastic package...even if it's the same brand, the boxes tend to have more lumps and need to be sifted.
Don't have a clue about the other situations you're having. Good luck!

Don't add more water, try adding more glycerine.

I haven't changed any thing I put in it...and I don't use glycerin? So I don't know what's going on. I guess this time is is too much water but I don't know what is going on with the clumps of PS.

Oh, I've never seen a recipe without glycerine. Did you sift your sugar first? I never do, but I'm not familiar wih your recipe, so that may help. Also, I still say try to add glycerine. It helps with dryness.

I say add some shortening and knead the heck out of it!

PP* she is making a marshmallow fondant not regular where the recipe includes glycerin & glucose