still having showstopper-issues even with the latest version (now 2.1.0).
If there is no value set in Min / Max, the shop displays initial value of 0 with that product (as before, even as with v 1.6).
When I now try to add such a product to cart the website shows a blank white screen and the message:
“There has been a critical error on this website.
Learn more about troubleshooting WordPress.”
Fix: Rollback to v 1.6 and everything works.
(product still shows initial 0 to add to cart, but when you press add to cart, one item is added)