Try Setting Loop timer as follows for your Light & hope it will work. (just a logic based on my experience)
Loop Timer-> Restart Cycle = OFF
Check After Checkbox -> Set Min to 2 Mins
Enable & OK
Let me know your feedback
so in short.... how is this done?
I wish I can help but mine is the same. I've set mine to 3mins to turn OFF and it's off in less than 2.... often in about 1 min. Very disappointing. How complicated can it be to program a simple time-based timer.