This has actually been broken for a while

On my team page a date for "Sign-up date" is shown and a position for "Position in 'sign-up date' stats based on incremental update" but the link is to an empty page

This only applies on my Team page. The equivalent link on user pages works fine and always has.

No rush for the fix - as I said, it's been broken for a long while (tbh I only just discovered this part of the forum).

Thanks

"fixed" by removing the link.

It's not of much use as the most active teams are created automatically when the project is started so they all have the same sign-up date. Other teams are created so sparsely that they are alone on their sign-up date page.

Actually, I agree. Perfectly understandable and fine by me.