We have severe issues with losing connection to our devices. It seems to happen quite often when performing blueprint related operations. For instance I just saved a blueprint from the device d604a11db337dab5dbbb3f0e3 and it stopped responding.
Our devices are battery powered are therefore in ULPM sleep most of the time, waking up at intervals between minutes and a few hours. Could there be issues when applying blueprints and a device is going to ULPM?