Sorry, but that does not make any sense. Why would any product have 2 brands together?
Also is working ok on my other site
https://zajcektrgovina.si/trgovina
https://i.imgur.com/lZ61GLz.png
and of course each product only has 1 brand.
ziga
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.