Custom/Brick/Triathlon Activity Tracking with custom workouts

Hi,

I've been trying to do a custom activity tracking with 3 disciplines (sim, bike, run) and then assign a custom workout I created with GC of the them 3 disciplines to it! the activity starts well but when I press the lap button I get Garmin Triangle shown for few seconds where I expect say Transition before the watch goes back to tracking mode! any ideas?

Thank you,
Rami