The yellow check mark means the server did not receive signal when the schedules are executed. All your schedules will be pre-downloaded on the local and updated every day. When the unit finish execute a schedule on the local, it will send signal to the cloud and the green check mark means the server receive the signal. However, when there is internet glitch, the server cannot receive the signal and will have yellow check mark.
Could you please have someone to do a instant manual run? If you instant manual run without issue, please do not worry about the yellow check mark.