Just noticed dlfrsilver preserved Chamonix Challenge by IPF'ying the version that was included in the Super Quintet compilation (the one that used to be sold in the U.K.). He did the same with Bubble Ghost. TMF couldn't crack Chamonix Challenge properly, that's why it's an h flag instead of cr I presume.
https://eab.abime.net/showthread.php?t=63565