Automations not always triggering

Hello all. I set up 3 virtual switches for 3 novostella bulbs. Each one works using the switch with a little bit of a delay. I tried setting automations through both the smartapp and smartthings menu for when a mobile presence arrives, it will turn on the 3 bulbs. Through the smart app, none of the lights will turn on. Through the automations, 2 out of the 3 will turn on but not consistently. Not sure what’s exactly going on. The hub, router and all 3 bulbs are in the same room so connectivity shouldn’t be an issue. Still new to all of this so any help would be much appreciated. Thanks!