I am confident it was something in the theme and interacting with woo. We dug and time was ticking. It was working perfectly fine, then either the theme was upgraded, or woo was upgraded. Not sure (and not very helpful for finding the root cause). The ‘sold individually’ was not modified to my recollection.
On second look, it works fine since when the text is selected, the checkmark appears. So.. this can be closed.
Yes, that fixed it! Fantastic.
Thank you for your reply. I see the problem. However, I don’t use it in that way, so including the featured image as an option with full text would be ideal. Not that it’s a show-stopper. 🙂