Okay, I checked it an its 100% happens whenever the Customizer Battle Pro is active. I turned off all Visustella plugins and it keeps happening and it only works properly when that specific plugin is active. Your other plugins have no issue with Visustella plugins, though.
However, when the main Visustella Core Engine and BattleCore are turned off, animations don't play at all, so I think there is a compatibility issue with those two specifically.
Thank you for responses. Despite the issues I have having, your plugins are a big help and are so convenient to use.