[SOLVED] Using item label in Timer routine

I could reduce the problem to follwoing code:

homeControl.items:

Group gHealth_SW
Switch Health_SW01 “Health SW01 [MAP(switch.map):%s]” (gHealth_SW)
Switch Health_SW02 “Health SW02 [MAP(switch.map):%s]” (gHealth_SW)
Switch Health_SW04 “Health SW04 [MAP(switch.map):%s]” (gHealth_SW)
Switch Health_SW09 “Health SW09 [MAP(switch.map):%s]” (gHealth_SW)

rule:
   gHealth_SW.members.forEach[actSW |
        	logInfo("check_Status_SW","SW  - " + actSW.name + " / " + actSW.label)   //ok
        	actSW.label="xxx"   //error
    ]