Product Variant problems

Added a new product to MP. Very simple: just two variants, each with three options.
1) Randomly, the first defined variant (Juice Name) appears second in the order of drop downs on the product page. Annoying: the first defined variant is the main one and the featured item; the second is just a variant of this. Can I alter the order?
2) The variant "Juice Name" doesn't offer the different juices and is broken.

I cannot see why it would suddenly not work like this on such a simple task. What am I missing?

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