Tasker Tasker command system not working

I'm trying to get taskers command system working. for testing purposes i set up a AutoNotification with two buttons, a Profile to react on the commands and a simple flash task.
can anyone tell me what i am doing wrong? even run log does not show the button pressed

Autonotification:
Notification (119)
A1: AutoNotification [ Configuration:Title: notification
Text: text
Status Bar Text Size: 16
Separator: ,
Button 1: button=:=foo
Label 1: foo
Button 3: button=:=bar
Label 3: bar Timeout (Seconds):20 ]

Profile:
Profile: CommandMonitor (112)
Restore: no
Event: Command [ Output Variables:* Command:button=:=* Variables: ressed Last Variable Is Array:Off ]
Enter: action (118)
A1: Flash [ Text:%pressed Long:Off ]

Task:
action (118)
A1: Flash [ Text:%pressed Long:Off ]