I tested it out in a new project and it worked. Is your Battle Core plugin at the latest version? Best I can think of is that version 1.45 of Battle Core is when common event keys were created, so anything older than that would not work.
Let me know if this was the issue, and regardless, I'll make a note in my instructions what version is necessary!
Viewing post in (FREE) MZ Action Sequences - The Basics comments
Yes indeed! It's working now! I figured it was something simple since from what I can tell no one else was having that issue. Thank you again! Absolutely loving these attacks. My goal is to combine it with HeroicJay's Dualtech system so I can have two or three characters attack at the same time for team combos. Just getting this to work is a huge step and now I can experiment, endlessly. Lol. Thank you again for all your hard work!