Just a quick update to the issue I am having. Was using the originally released version successfully (other than the issue with the MPG jumping around when the value was over 100). I have a 2010 Prius and the custom PIDs worked fine.
I wiped my phone last night to try to address battery issues on my Nexus 6P, so I did a fresh install of both Torque Pro and OBD2AA 1.2 on the current non-beta version of Android O. I am now back to the issue where the custom PID values read zero, but the standard PID values work. I have the first 3 gauges set with custom values and the last 3 gauges use standard PIDs.
I will probably need more details on that, I will email you on Sunday or Monday, calling it a day today and I'm out all day tomorrow.