Changing logo in web is not staying in place when there are (2) web servers with their own Admin service. There is (1) database and (2) ARS servers running the ARS Administration service. Add another server running ARS service and sharing the DB with the original server running ARS service and Web components.
An enhancement request (TF0429207) has been created detailing the feature.
The product team will evaluate the request and this feature may become available on a future release of the product.