1) You have to mix Rodinal right before you use it, not ahead of time. If your mixed developer stood around, even in your accordion bottle, for more than a few hours it will go bad.
2) Stand development is not a magical panacea. It can work fine on higher contrast subjects but when the contrast range of a neg is small it will look like crap. I really don't know why people keep trying to use these obscure methods when they don't work as well as the simple plain Jane ones. If you would have simply developed the film according to the instructions on the box bot negatives would have turned out fine.