If you inspect the HTML elements do you see anything in the img tag? That should give you a clue if the URL is not serving the asset correctly or if it’s being omitted entirely.
That is so weird. I tried with another browser in private mode (also clean all the application data), it still does not work.
One thing I noticed this time on dev tenant is that, it still seems to be trying to download an old logo url which is now returning 403. That is the url I replaced with new one.
As you can see above, the image src tag has the correct url. However, the class c22c60el is trying to load additional content with old url which is returning 403.
For prod instance, it seems to have the same issue.