When going to crop an image for a profile picture, the picture shows up but you cant edit the placement, size, or anything regarding the picture. Even if you go ahead and click Crop, it throws an error because you haven't done anything.
I tried this on two different computers. A few different profiles, and all act the same.
Reviewing through your description, it's possible you are running into an issue being tracked as CLOUD-2431 which impacts users on the Chrome browser. However to confirm I would recommend submitting a case in your customer group, where a member of our support team can investigate into your specific instance to confirm the issue and provide updates on the status of the issue.