Delete tab not working?

Hello, I’m trying to delete this custom tab. When I edit and delete it, it seems to be removed, but when I reload the page, it appears again.

If you scroll to the bottom of the page, there should be “edit tab”. Click there and then delete.

As I was saying… if I delete it, it reappears when I refresh the page.

it’s strange because it happens only with this tab…

Have you cleared the your browser cache?
Have you deleted the charts before deleting the tab?

Just trying (systematically) to go through the various options, eliminating all possible options. It might be a big, but doesn’t happen to me when deleting a tab.

Yes, the tab is completely empty… and it only happens with this specific tab. I did this just to point out the bug to @david. My personal solution for now is to make this undeletable tab useful.

This should be fixed now. Adding tabs was also broken. Tx for the report and tx for helping Gerald.