This is probably a red herring, BUT, FWIW, I went into Settings | More connection settings and disabled “Nearby device scanning”. I have not had a single failure to connect since doing that. (Android still presents a list of known BT devices when BT is enabled, though, which of course I cancel out of). However, even after re-enabling Nearby device scanning, it is still working flawlessly, so this is very tenuous. IF this really is a workaround, I would find this an acceptable workaround, because it’s a very quick & easy thing to do each time I use the meter. Having to “forget” all my other paired BT devices is not something I find very palatable. (if that did turn out to be a workaround)