Then I moved it to my gavel bike (converted to my winter bike), paired with the speed sensor and calibrated for it.
Now, when I moved it back to my plan-B bike it did not appear to recognize the speed sensor on it. Basically when I turned it on it blinked green a couple of times, then just (appeared) to go off. It still looked cool, so I didn't tell anyone I wasn't getting any power numbers.

So, am I missing some step for switching bikes? Or might I have lost my original profile with my first bike? Any way to recover, or do I just need to re-pair and recalibrate? If so, how do I do so without loosing the profile for my gravel bike?
Thanks!