Hi,
I have created several products in M2 admin., but some of these have problems. I create them always the same way: add new conf. product/then add configurations. First, I created one configurable product with two new attributes (size and color), but the size options disappeared and the main product. It shows only the simple products with the color, not the main product and not the same options. Another products I can not access anymore with the error 'undefined offset'. You can see in admin, that it is there, but you can not make changes. It is also not shown in shop.
In the beginning I tried via csv. data, but that had similar problems.
Any similar problems and tips, what to do?
Many thanks!
