MIDI BLE issues

Hi. I've been using wireless MIDI BLE sensors (Adafruit Feather Sense) since 2022 with no connectivity problems until about three weeks ago.

However now Max/MSP cannot grab the sensor data, and I can't figure out what the problem is.

I'm running Max 9 on a Macintosh (powerbook circa 2020, Intel core, OS 15.3.1).

My Macintosh can see the bluetooth device and connect. The device shows up in my Audio-MIDI app on the Mac as connected. Max/MSP sees it as a MIDI device when I double-click on a ctlin object. But no data from the device gets into the Max MIDI objects (via ctlin objects). Sometimes Max will register a flicer of data when connection is first made, but then nothing after that. But usually no data whatsoever gets into Max.

I've reset the BLE devices, reloaded their code, removed and re-added them to the Macintosh list of bluetooth devices and the MIDI-Audio app's list of devices. None of these actions make a difference. Any advice?? Thanks!