This was never possible on the old site.
Steps to reproduce:
Create an issue.
Click on the vote button.
Observed results:
You can upvote a report that you created.
Expected results:
This shouldn’t be possible.
WEB-7715
You can upvote your own reports
Open
17
This is just standard native behavior for Jira Cloud. The old layout used a custom script to block the reporter from clicking the vote button, but the new platform just uses standard Atlassian permissions. Since one user account can only ever add one vote anyway, the system allows it by default to show you're an affected user. It's more of a design change from the old site rather than a broken system glitch.