I don't know what impact the server modifications will have in the short term, or if browser issues or caches affect things. There are so many moving parts. I would just say hang in there for 24 hours and see if things smooth themselves out.
I've been getting those bands and the same colour over the top of the toolbar of the page.
However had it tonight again but the post still was saved.? Seeing it when I save the post, but very quick now.