>>If I select "Go back one hour" (or any other time), and then click on the button to get new messages, I first see an empty page, as expected. But after a few seconds, the page reloads, and shows me thousands of "new" messages!
>
>If I understand correctly, you use the Time warp option from the Dashboard. Then, you select to go back one hour. This would then give you some messages in the map of messages frame. I assume this is what you have. From that point, a little while after, if you click on the icon to get new messages, this is when the situation happens. Is that correct? Based on what you wrote, you seem to have found a relation between the two. Can you elaborate more or provide more information so I can collect more data and see from that point?

Yes, as far as I can see, you understand correctly.

The problem only appears with Google Chrome.

Steps to reproduce:

Login with Google Chrome (no such problem with other browsers).

Use Time Warp, and go back one hour (any time will do, as far as I have seen.)

Click on the button "New messages created during your session..."

Wait a few seconds.

First, you'll see the expected result; usually an empty page if there are no messages.

After a few seconds, the screen will refresh, showing a few thousand new messages.

Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)