It is absurd that this problem has existed for almost 4 years and no one at Shopify has taken the time to fix it. And in the meantime there is apparently a whole team trying to jam the useless Kit down my throat. We shouldn't even be able to cancel an order if it is going to show up as unfulfilled in our orders for ETERNITY. Shopify makes a great iOS app that nw will always show me that I have an outstanding order to fulfill, even though it was cancelled weeks ago.
First clear your cache - I use CCleaner - the free version
Then follow this which was found to work for some including me ( I think its a browser issue )
1. go to orders > all orders
2. click on open orders
3. sort by date (oldest first)
4. select all the old orders that you need to get rid of
5. actions > unarchive orders
6. REFRESH your browser
7. select all the orders again
8. actions > fulfill orders
9. REFRESH your browser
10. I think the orders stayed selected this time, but if not select them all again
11. actions > archive orders
12. REFRESH your browser
thanks so much for coming back to me so quickly - the strangest thing happened, after posting here I went back to my site and I filtered my open orders I don't think I did anything else, certainly nothing complicated and it seems to have miraculously fixed itself - is it possible Shopify fixed the issue on the exact day I decided to join the conversation???