Please go to Diagnostics > Logs > Support Info > click the blue Support Files button to download a .tar file from each radio to your local computer, and then email the files to email@example.com.
“Non-Responsive System” is a generic message, so we will be able to diagnose further based on the detailed logs.
There were some GPS memory leaks in 1.2.2 that were fixed in 1.2.3. There is a known SNMP memory leak in 1.2.3 that has been addressed in the 1.3 beta.
It is also worth mentioning that we recently instituted a number of automated regression tests that focus specifically on memory consumption to prevent these types of problems from being introduced in future releases.