Set image focal point not working

When adding an image header to a SharePoint page, the "Set image focal point" is not working. Instead, it crops the image, and users are not able to control what part of the image is displayed in the header. I am wondering if this is a temporary glitch? Otherwise, there might not be a reason to have this button available in SharePoint in the first place.

Anyone else experiencing this? I've just noticed it this week, but my colleague says this has been how header images work in her system for weeks.