@dzoldan529 I was unable to replicate the issue you’re having with stacks. I tried several times but was able to make as many as six with no problems. I think this could be a browser cache issue. I’ve found that clearing the cache, especially if you have been working for a long while in EditorX can be helpful.
After you have cleared your cache, try it again and please let me know if that remedied the issue or not.
Thanks,
Rich