Joy Hawkins posted in the Local Search Forums that a bug with Google My Business is causing photos that were recently uploaded via Google My Business by the owner not to be able to be seen in Google Maps by searchers. There is no ETA for a fix, but she suspects it will be fixed by the end of this week.
There is a known technical issue right now with Google My Business photos where users can see the photos they added in the dashboard but they are not publicly displaying on Maps. Google is aware and looking to resolve it.
So if you uploaded new photos to your business or for your clients and you cannot see them in your Google Maps listings, you are not alone.
Hopefully Google will address these issues quickly.
Forum discussion at Local Search Forums.