This is a bug, confirmed by Elektron. Minor seeming thing, but it lead me to an impasse in using the Heat the way I intended and ultimately resulted in me returning it. I use my elektrons exclusively via OB in Live. Although the Heat worked fine via OB for the most part, I quickly realized that I'd have no ability to recall and tweak the processing I'd used on a given audio source if I used it on more than one track in a project. And it is so great sounding I wanted to use it on many tracks! Presets would have been an (albeit slightly clunky) workaround to this issue....but I couldn't save any.
Sadly a deal breaker for me. And it's somewhat unsettling to know that 6+ months later, Elektron have yet to fix it.