I’m running a test bed of observium at home seperately of our main installation - i had previously written a very basic observium agent module that polls current power usage for a home monitoring sensor and outputs it, and then a custom polling module that reads this data and basically graphs it as a power sensor under a device (https://gist.github.com/anthonysomerset/3860b7a3b650d8bbbf53faac2d5eeab5)

the unix-agent is working same as before

but since i updated overnight on 1st november the graph has disappeared and my event log is filled up with sensor added events:

also under the device itself the sensor is saying deleted around 5 days ago (2018-10-27 00:01:04) 

this looks like immediately after it updated on that day (looks like last commit on that day was 9517)

any thoughts on how i need to fix?