Light doesn’t stay on

I’m having an issue with floodlight cameras. If I turn the light on from the “Lights” section in the app, it stays on indefinitely until I turn it off, which is what I want. If I put it in a light group, even by itself, and turn it on from the light group section, it turns off in about 30 seconds due to the auto off timer. My main reason for putting it in a light group is because I read online that it’s the only way to control it using Alexa, which does work, except the light turns off in about 30 seconds. I’ve seen similar posts, but the  answers usually focus on changing the shut off timer, which doesn’t have a choice to keep the lights on indefinitely.