As for the MediaPlateCompElement, on the Transform / Compositing Passes -> Multi Pass Chroma Keyer tab, the Material Parameters from the Blueprint are important

I have a job. I get stuff out of MultiPassChromaKeyer. I transform the material to dynamically set it to the values ​​I need. I reinstall this material back. The material is reset, but the values ​​are not saved.

hello, do you have the answer for this problem now?