Hi

If I change the logo in the company configuration, the logo is the good one for the website, but there is something weird happening in the backend.  First I saw quickly the new logo, then it's replace with the old one after a second or two.  

Complet deleting (in the backend interface) made the Odoo logo come back in the website but still the old logo in the backend (after a quick flash of the Odoo logo).  Restarting the server and losing back, same issue, quick appearance of Odoo logo then back to the logo I have deleted (not deleted the file manually but use the user interface only)

Any hint