U design logo bug

I use U Design Theme with a multi site Wordpress but I meet a bug with the Logo. I would like to have a logo per site but it is impoosible. All sites have the same logo ! Do you know how i could do to have a logo per site.

Thank you for your help

Pretty sure that multi-site use is not allowed as each individual site requires its own license

If this is the case then it would explain why certain features are limited or cannot be customised to each individual site

So how can i do?

You can ask the author but pretty sure you will need to buy and install a separate license/version of the theme for each site https://help.market.envato.com/hc/en-us/articles/203039054-How-to-contact-an-author