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Testing on my local site, the Jira Cloud for Sheets worked normally.
Have you tested using another browser?
If you go to Add-ons > Manage add-ons, does it show any error?
Have you tried to uninstall and install the add-on again?
Also, please, open the developer tools on your browser and check if it shows any other error on the console tab when you open the add-on.
Catch up with Atlassian Product Managers in our 2020 Demo Den round-up! From Advanced Roadmaps to Code in Jira to Next-Gen Workflows, check out the videos below to help up-level your work in the new ...
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