>>>> FIXED with v442 of the player! <<<< This is just a demo for a github issue I posted about some time ago. If you've ever had an occasion where the values of some parameter in a custom block appears to be totally wrong, then it's possible that it was to do with this glitch. It happens if you move around those blue custom-block parameters (or script containing them) *after* you've already run that script, and then you connect it back in to a custom block that has the same parameter name, but in a different parameter position (which may be the same custom block after you've edited its parameters). See https://github.com/LLK/scratch-flash/issues/810 for more.