Looks like some of your old event data is has some missmatched entries - I am investigating in more depth. Is it ok if I download a temporary copy of your site to do some local checks on your data,.

In the meantime I've changed your large dataset threshold setting which will hide these past events but the downside is it will make the backend a little slower.

I see the event no longer appear (and notice the slowdown).

It's fine with me if you download a temporary copy of the site, but I was hoping that, as has been done for other users with the same issue, you could simply delete that event from the database directly. It was somehow corrupted—the event date is from 1969. I'm not familiar enough with how the data is structured to attempt it myself.

Do what you think is best and please let me know what you discover.

Thank you.

P.S. Very impressed with the new interface!

Thanks - that was very helpful

Your database had no repeats for that specific event - I have now implemented a trap for this situation to allow you to delete them in the future.

The fix is in the next release due out on Monday

p.s. I have now deleted the copy I took of your site but have left Akeeba Backup installed so you can choose to keep it or uninstall it