Have you checked if there are any automation rules running which may be moving/deleting/transitioning the issues?
You can check this by searching for the created issue and looking at it's history, or you can navigate to the automation audit log to see if any rules have run during the timeframe the issue disappeared.
Hi Jira Community! I’m Mark, a product manager working on Jira Software. Today, I’m happy to announce that we’re launching custom filters for team-managed projects. If you’ve used the quick filters...
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