The "yellow triangle" does not necessary mean the schedules are not executed. All the schedules are pre-downloaded to the local unit, and when the schedules start and finish to be executed, the local unit will send signal to the cloud. The "yellow triangle" only means the cloud did not recieve the signal from the local unit, which may be caused by the temporary internet interrupt.
Please do a test to use the instant manual water button (the blue play button) on the home page to instantly water your zones, see if all your zones can start without issue. If the instant manual water button work without issue, you do not need to worry about the yellow triangle.