I was wondering if anyone has had this issue. I am working within the Sidecar template and for each slide I want to add a web map (the same web map) that relates to the information I am trying to convey on the left-hand side text area. However, after about 12 slides total (between 3 different Sidecars), the "add map" menu crashes as it tries to load the list of recent maps and I am unable to proceed further. I've tried deleting the Sidecar and recreating it with no luck and I've tried clearing my browser cache to no avail. I am not sure at this point whether I have reached some sort of invisible resource limit or if this is simply a bug that hasn't been ironed out in the StoryMap builder. Any help would be appreciated.