Problem with skin webfig RouterOS v7.5

Greetings to all.

I have a Mikrotik CCR2004 with routerOS version v7.5, I am trying to create a new skin for the webfig that only allows the call center team to see the DHCP leases. When I log into the web and create the new skin, the changes are made but when I create the new user group to select the skin I have created I only get the “default” skin and I don’t have available to select the new skin, although the new skin is saved in the skins folder.

Does anyone have any idea what to do? Thanks in advance

First, install 7.11.2.

Exactly the same issue even on 7.14.3, the latest stable version available in May 2024