How to use the slider to change the position of the Player?

I have posted this .aia as a guide and Mika suggested me to use one of kodular’s default player instead of the extension. I tried to use the same method in ExoPlayer, without success. I believe the “seek to” block is different from “start at”. I was also thinking of using two sliders as a workaround, but I’m quite sure the issue is in the “seek to” block.