KIII and Coreelec 9.2.1

I am new and I really appreciate the work you do. I have a tv box KIIII and I have installe the release 9.2.1 but I am experiencing problems with the refresh rate change. When playing content in 24p the screen changes from 24hz to 60hz without stopping, continuously. I have had libreelec and I don’t have this problem.

I’d appreciate some help or solution if it’s a bug.

Regards to all.