This is crazy, and yes, it does happen in Firefox. I noticed when I logged on that my events suddenly began showing as a list. I went back into WP to revert back to calendar, and all of a sudden the images began to go grey when the page loaded.
If I change back to list, it solves the problem, but it does not solve MY problem, because I need clients to be able to see my availability into the future.
How does a regular every day WP user solve this problem??
Please help?
I am having the same problem. I cannot find the code in that link, nor do I know how to update my code in this regard, so if someone could possibly explain to me how to do this, I would really appreciate it!