[Observium] No devices found

Hi,

I am having an issue with latest Observium release 0.16.9.8086 (9th September 2016), after updating to latest revision the discovery/polling is still working fine according to logs, however the web interface shows 'No devices found' and can't access any data. Any hints on how to solve this issue or investigate further ? Resetting the search parameters doesn't help.

Best regards, Alessandro