AronMurch

That makes sense. Thanks for your support. The AJAX switch is a good idea that unfortunately doesn’t work for my setup. Disabling it by raising the threshold using the filter from this page, solved my problem:

https://woocommerce.wordpress.com/2015/07/13/improving-the-variations-interface-in-2-4/

Thanks a lot for sorting me out, and great work on the plug-in in general!

Thanks for your response. Why does switching to AJAX make the nonexistent variations selectable?