[Observium] Interface descriptions are blank

Hello,

We are using subscriber edition 0.14.9.5815, polling juniper QFX3500 switch (two switches - Virtual Chassis cluster). After adding the switch and running discovery.php, interface descriptions are recognized just fine, however when the device gets polled for the first time, all interface descriptions get removed.

I checked it with snmpwalk and I can see interface descriptions in the output.

Thanks, Roman.