@mike.maxwell
This is just one for the back bin; hardly worth a support email 
I turned on the logs but there is really nothing that points to the code location. Using the built in driver Advanced ZB RGBW Bulb for my Geldopto LED and I get one Div by 0 every time I turn on the device. Not OS change related, been there since Jan/21. Device works as expected.
dev:3112021-05-25 21:53:12.551 errorjava.lang.ArithmeticException: Division by zero (on)
dev:3112021-05-25 20:46:23.551 infoRec Room Floor Lights was turned on
dev:3112021-05-25 20:46:23.420 errorjava.lang.ArithmeticException: Division by zero (on)
dev:3112021-05-25 11:52:35.064 debugdescMap:[raw:catchall: 0000 8022 00 00 0040 00 691C 00 00 0000 00 00 AF88, profileId:0000, clusterId:8022, clusterInt:32802, sourceEndpoint:00, destinationEndpoint:00, options:0040, messageType:00, dni:691C, isClusterSpecific:false, isManufacturerSpecific:false, manufacturerId:0000, command:00, direction:00, data:[AF, 88]]
dev:3112021-05-25 11:52:34.648 debugdescMap:[raw:catchall: 0000 8022 00 00 0040 00 691C 00 00 0000 00 00 AE88, profileId:0000, clusterId:8022, clusterInt:32802, sourceEndpoint:00, destinationEndpoint:00, options:0040, messageType:00, dni:691C, isClusterSpecific:false, isManufacturerSpecific:false, manufacturerId:0000, command:00, direction:00, data:[AE, 88]]
dev:3112021-05-25 11:52:34.253 debugdescMap:[raw:catchall: 0000 8022 00 00 0040 00 691C 00 00 0000 00 00 AD88, profileId:0000, clusterId:8022, clusterInt:32802, sourceEndpoint:00, destinationEndpoint:00, options:0040, messageType:00, dni:691C, isClusterSpecific:false, isManufacturerSpecific:false, manufacturerId:0000, command:00, direction:00, data:[AD, 88]]
dev:3112021-05-23 21:47:45.938 errorjava.lang.ArithmeticException: Division by zero (on)
dev:3112021-05-22 23:11:32.511 errorjava.lang.ArithmeticException: Division by zero (on)
