Developing and testing features or extensions for Microsoft Edge
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So edge now starts with black screen instead of default homepage and after a few seconds homepage appears but there's no option to change the appearance like there was before it's default edge logo. Opening a new tab does the same thing. This started happening after I installed october cumulative update. Version Windows10 2004 build 19041.572 and edge version 86.0.622.58
Developing and testing features or extensions for Microsoft Edge
Try update Windows and update to the latest version of Microsoft Edge and the problem should have been fixed.