Flawless Trophy - Locked Even After I Reached Eternal League

Even after I reached eternal league this season, it still says I can’t get this trophy. I don’t know what is happening cause last season it was okay.

You can get the legend version from legend reward chests. You get the eternal from eternal reward chests. Please be aware that Flawless trophy is not easy to obtain.

Ops, I guess I got misunderstood.