I just had nightmare flashback from 4 1/2 years ago...... 
I too had a strange issue with a Pico. In the end, it was interference between the Pico and the Bond hub transmitting simultaneously and causing interference. If you have a few minutes, you can read the link thread:
I hadn't read about anything similar before that happened to me or since.
P.S. The thread even includes input from a former overly-sensitive and now banned community member for those looking to relive the past. Yes, he got insulted at one point during thread.
