Problem with product variations

After updating to WooCommerce 2.1.7 I have some problems on my site.

All my products are variable products and some of them have a color attribute that doesn’t have any price.
Before the updating It wasn’t a problem, I was able to choose a color, then a width and height, and I had my price. But now, it says that the product is not available. I think that it’s because now is necessary to put prices in all the variations.

In my variations(wordpress panel) I have:

– Red – Any width – Any height
– Blue – Any width – Any height
– Any Color – 135cm – 180cm

I can’t do all the combinations between colors and dimensions because in some products I have 35 colors..

There is any way to go back the way it was before?

Thanks.

https://wordpress.org/plugins/woocommerce/

[Moderator Note: No bumping, thank you.]