I am replying to my own question as I believe I have found the problem - all of the supposedly sold out calendars had coloured wire - and once I changed it to black the calendars were miraculously back in business. This is surely a bug?
Thanks - but I discovered it was the colour of the wire which flagged the calendars as sold out. If it had anything other than black wire, it was sold out! Now changing them all
Thanks for your post. I was able to replicate activity similar to what you described in your original message so I’ll pass it along to our team here to investigate further.
You’re welcome. It looks like the issue was the red color wire according to the URL link provided. That color isn’t supported anymore but the black and white options are still available