There is a known issue with JIRA Agile 6.4 to 6.6. Check out the warning on the release notes.
Other than that, I am not aware of any issues although having thousands of issues in the backlog or in the board itself is not a good idea.
Over the next several weeks we'll be sharing some of our Getting Started guides here in the community. Throughout this series of posts, we'd love to hear from customers and non-customers ab...
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