Welcome to the community! We're sorry for the delay. Are you still encountering this issue? If so, have you tried using the other suggested browsers (Safari, Microsoft Edge, and Google Chrome) or incognito mode to see if it makes a difference?
Also, try clearing the browser's cache and cookies and let us know if that helps. For more information on how to clear cache and cookies, check this link- https://adobe.ly/3Zd8FEi
You may also try switching to another Internet connection—A stable Internet Connection is needed to ensure that features like removing a background will be successful.
p.s. i don't think the adobe website, and forums in particular, are easy to navigate, so don't spend a lot of time searching that forum list. do your best and we'll move the post (like this one has already been moved) if it helps you get responses.