We pushed a change intended to migrate the Download Image Dialog from rendition to MUI as we are in the process of migrating between UI libraries. This involved adding some analytics/tracking content in the Download Image Dialog.
This added cookies, which in conjunction with how we checked cookies inadvertently created an infinite loop when checking cookies.
The quick solution while a fix was worked on was to pin the dashboard back to the previous version. A solution has been PRed and is aimed to be merged tomorrow when the team has more time to monitor the situation.