Glad to see you figured it out. From memory, as long as the .funscript file has a list of actions, that’s all FunPlayer needs.
For support, posting here is fine but maybe more preferable on the main forum post for the software available here FunPlayer v1.6.1 - macOS funscript player - TCode USB, The Handy, Intiface - Now supports VLC, IINA, and Safari via Extension!
I got an email notification of your comment here anyway so it’s fine either way, but posting on the main one can help other people in the future easier
Another option is Discord if you use it, and finally, sending a direct email.
Here is the official contact page that has link to Discord and email address Contact | FunPlayer