BUG? SwOS IP login active when RouterOS active?

I have a situation where I am offered to log in into SwOS over ip/browser, but in actuality the RouterOS is active for management. Is normal?

I have this happen on CSS-1G-4P-1S

I have also seen logging in into SwOS, but when I click update, I suddenly see RouterOS web interface. Thi occurs on CRS328-24P-4S+

All this on 6.42.12