Is it a Confluence Server or Cloud?
A bug was reported on this a while back and it seems to have been solved. However, you might be facing the issue again.
Here's a workaround
Here's the bug report I was talking about https://jira.atlassian.com/browse/CONFCLOUD-40833
According to me, there's no native way to do this, however, there are plug-ins which are available from what I read. (Though it involves a 'high-risk' factor)
In case you are happy with my answer, I'd appreciate you accepting the answer.
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