This sounds very similar to a bug I reported that still has not been resolved and is bloating out lots of character sheets. Its my belief this occurs when a crash happens when a session is initializing from idle and throws an infinite loop error and restarts. You can clearly see it duplicates its entry for character sheet workers. After that spin up sure enough, my characters sheets all get duplicated actions on the front page. Be careful which ones you delete if they are spells, you will break the spells tab of the OGL 5e sheet if you delete the entries the spells page are linked to forcing you to have to re-drag n drop them.