>>hyperglycemic episodes due to infusion set failures

Do those have to do with blocked supply lines, the CGM misreading, or software glitches? I would guess the first but would expect a unit to sound an alarm when glucose levels went out of bounds. I'm also curious as to whether any of these 'bionic pancreases' also have alpha cells (glucagon / DNGG)? My understanding is that T1DM folks still can produce glucose in the liver in the presence of glucagon(?)