I'm not using Beyonddnd extension

Originally the problem was in Edge and Firefox. Firefox is working again but that's happened before, and the problem came back.

Maps: Avatars work fine on Maps, but not in the Initiative sidebar or Token browser

My Characters & Character Sheet: Random avatars and character sheet backgrounds are not loading. Sometimes it's all of them, sometimes it's some.

I've cleared the cache and cookies a dozen times, allowed popups, allowed 3rd party tracking and all cookies, disabled all browser extensions. Reuploaded avatars. Gone through every troubleshooting step suggested by Copilot. None of that helped. Sometimes the images come back for a few minutes but then disappear again. They are currently working again in Firefox, not sure why. 

Console shows messages like:

gtm.js?id=GTM-N3KHV3K:941 setInWindow: gtmConsentListeners success: true
VM613:12 cleaning up cookies based on consentData Object  <<< Could this be the problem? 
VM620:1 Sailthru Tracking Success
638535800141502392.png:1 Failed to load resource: the server responded with a status of 400 ()
638535799663421920.png:1 Failed to load resource: the server responded with a status of 400 ()
1581111423-123757939.jpeg:1 Failed to load resource: the server responded with a status of 400 ()
1581111423-106062107.jpeg:1 Failed to load resource: the server responded with a status of 400 ()
1581111423-136076324.jpeg:1 Failed to load resource: the server responded with a status of 400 ()
1581111423-139859160.jpeg:1 Failed to load resource: the server responded with a status of 400 ()
1581111423-141049211.jpeg:1 Failed to load resource: the server responded with a status of 400 ()
1581111423-142143194.jpeg:1 Failed to load resource: the server responded with a status of 400 ()
1581111423-145566000.jpeg:1 Failed to load resource: the server responded with a status of 400 ()
636339381754406274.png:1 Failed to load resource: the server responded with a status of 400 ()
637883139384022401.jpeg:1 Failed to load resource: the server responded with a status of 400 ()
1581111423-154115307.jpeg:1 Failed to load resource: the server responded with a status of 400 ()
638630702936721680.png:1 Failed to load resource: the server responded with a status of 400 ()
1581111423-154115307.jpeg:1 Failed to load resource: the server responded with a status of 400 ()
637744506649868734.jpeg:1 Failed to load resource: the server responded with a status of 400 ()
1581111423-157369689.jpeg:1 Failed to load resource: the server responded with a status of 400 ()