Asset store will not load in editor or install asset from website.

I am using unity3d Personal 5.4.0f3. Asset store simply fails to load in editor at this time for some reason, just remains a grey screen. A reload does not work. I have also tried disabling Dx11 options and delete and re-installed Unity, no change. It will also not install an asset from the asset store via website.

After further tinkering, I undocked the asset store window from the editor, it will load and import assets that way, just not docked.

Any ideas? Thanks.

Please look at: Asset Store gray screen in Unity (MacBook Pro; 10.12) - Questions & Answers - Unity Discussions

The workaround to access the asset store when using mac OS Sierra is to drop the tab to a single window. Than you can see the asset store. Unity or Sierra don’t support to display the asset store in the tab (embedded window).