oops - found the fix for user profile photos - those in fact were not affected by this, that was operator error .
But graphics uploaded in Summary or side HTML blocks are affected. They are in the file repositories for each course, but their link is broken; it remains
(this is what I see when I right-click/properties on the alternate text),
while it now needs to be
Interestingly, graphics both embedded in & attached to forums posts seem to all be fine.
Again, I can go in & fix each one manually by re-linking it, but it sure would be nice to fix this without all that labor. Anyone had to do this already?