I am currently working on creating a StoryMap and need to incorporate a map with custom symbols but they don't want to appear. In ArcGIS, they appear just fine at all scales but when I try to pull up the map in StoryMap they do not appear. I tried switching to some of the other provided symbols and those appear just fine. I'm wondering if it could be the file sizes of the custom symbols? I'm not sure how to get around this and have tried resizing the images as well with no luck. Due to the information, I am not able to publish the map just yet but I hope that I explained the issue well enough.
Any and all advice is appreciated!