XF 2.1 How to make New Post list go back further

[Mr Lucky]

I just noticed on one of my forums the new post list only goes back as far as April 20. I imagine this is some setting that somehow got changed, but I am unable to find anything it could be in options. I'm sure it is something very obvious I am missing.

Can anyone please help? Thanks

(I have tried disabling addons and default style to no avail)

 

[Paul B]

It's based on the 'Read marking data lifetime' value set in the ACP but it applies globally to all content, not just posts.

 

[Mr Lucky]

Thank you