XF 1.4 Header banner not showing up elsehwere.

[WCFA]

I am running XF stock style and replaced the XF header logo with my own has been changed 5 months with it,
starting three days ago on my Facebook page when I post my url it shows the Xenforo Logo not mine.
I have tried entering www.urls and the full url in posts there yet its showing the stock blue xenforo .
Facebook showed the correct one until a couple days ago. I cant find where the Xenforo logo is even located for
it to find, it is using my correct name and the links I put works and goes back to my site, but shows XF's logo on any facebook posts I make. And yet I cant find the stock LOGO its using. Very odd any ideas ?

Thanks.

 

[Paul B]

The FAQ in my signature explains how to change it.

 

[WCFA]

The banner I have is where it should be according to changing it as mentioned been there many months.
I also find no pic for XF on my server so not sure how its pulling it up.

 

[Paul B]

Use the Facebook OG debug tool.

https://developers.facebook.com/tools/debug/

 

[WCFA]

Found it buried in a sub-directory replacing it should work.
Thank you

 

[WCFA]

PS now is showing another pic but I think I should be able to get it resolved from here thank you for the help Brogan.