HS4 log showing error every 3 second

[mrraptor]

Hi.
Upgraded from HS3 to HS4. Windows 10. Now Plugin is showing fault shown below every 3 second. Tried finding device with ref. 1284 but it does not exist.
Running JowiHue 4.0.3.3 Sensors on deconz and light on Hue

12-02-2020 22:51:48
JowiHue
Error
Error: (CreateNewDevice):Exception while executing GetDeviceWithFeaturesByRef - devRef : 1284 - message : Error while converting 263 to HsFeature : Object reference not set to an instance of an object. Service Version: NO_VERSION

[w.vuyk]

And the device with id 263? Does this one exist in your installation? It seems this might be a orphan device, but the HS4 version throws a rather confusing message here... seen it before and it was a child device without a parent...