I am trying to use the Kindle Cloud Reader in my Google Chrome browser. I am able to sign into my Amazon account, but the library screen just shows a spinning wheel. I can get to the library using an incognito chrome window.
Chrome version is 71.
Cleared my cookies and cache already and signed out then back in again.
Kindle Cloud Reader is compatible with the following browsers:
Google Chrome 20 and higher.
Mozilla Firefox 10 and higher.
Safari 5 and higher on Mac OS X/iOS 5 or newer.
Internet Explorer 10.
However, I too am getting an unable to work problem (see images 1 and 2) on Chrome, Microsoft Edge has no option to pin books (mage 3), but Firefox does (image 4). I'd recommend using Firefox. I do see all my books under all the browsers though (except for mobi and other personal documents)