Thanks for sharing your work in progress.
I discovered the same painfull thing with the VST index. Had to go and set all my parameters once I had finished. Also be weary that their numbers are the ones the DAW fetches, so it’s best if they starto from 0 upwards.
I grabbed your panel, as I’m curious about the graphics stuff, but it seems you didn’t export the graphics data going along with the panel, so I only get sliders.