We have just found a bug in Comfigurator up to 3.5.2 which may cause a problem in UCM/KNX
In KNX to Comfort, if you have a Group Address assigned to Drive Control (1-bit) mapped to a Counter, Comfigurator does not write the correct value to the EEPROM
When the telegram with the Drive Control Group Address is received, it may trigger a spurious response in Comfort
This problem was discovered and reported by ekarak in this forum http://www.comfortforums.com/forum12/2816.html
In that case it caused a spurious telegram to be sent to KNX
May thanks to ekarak for the feedback and information which helped us to track down the problem.