I can't process the sunflowers. To avoid going through the other millable plants I have (and wasting my limited bags), I set up a stockpile only for sunflowers and set it to give to the millstone. I give the order to mill plants and it cancels, citing no millable plants. And yes, there were sunflowers in the stockpile when I gave that order. When I remove the restriction, it mills all the other millable plants I've got.
Also, I tried making some bags from all that fleece... it gave me a bunch of fleece coffers rather than bags.
(I am sorry for seeming to post nothing but problems. I really do like the mod. If I disliked it, I wouldn't bother pointing out what's broken so it could be fixed.)
And I wasn't kidding about my fort not having access to flax or silk flowers. I even hoped the zebras might bring me some of either, but no luck. And with all those stacked up hides I'm not seeing any cloth for trade. I've built up a ridiculous amount of valuable crafts (stone, glass, and clay) but I'm not getting caravans with anything I need. (Well, I've been picking up extra seeds for the plants I do have and some dye and sand so I can eventually use those bags. Also buying up some of the steel and iron stuff to melt. Can never have too many bars of those.) Pony caravan was about to leave when I left off. Maybe the zebras will bring me some sheep when they show up. (I only have five and two of them are still lambs at the moment.)
I embarked in a tropical forest, (one of the few places I could find without an aquifer, the other places were either freezing, evil, or mountains) if that's what might be the problem. I really don't want to abandon, because this site is swimming in copper, iron, flux, silver, gold and I've been finding lots of gems. Also lots and lots of granite. (Enough I built the walls around my fort out of granite blocks. I like at least the fort walls to be stone.)