I've just installed a SSL cert on 3 of the domains in my multisite and I find when visiting the https URL of each, some of the images are missing. The images all appear fine on the same http URLs. I've tried different "force URL" settings in domain mapping with no change in results. I noticed that all my image URLs in my media library refer to the sub domain address in my multisite which don't have a SSL. However some of the images are served to https pages and some or not. How can I correct this?