Hue issues around automation (turning on/brightness)

I have 9 hue lights (exterior) which turn on when triggered by a sun elevation.

The automation calls a script which will turn the lights on to a specific brightness and or color. Sometimes a light or two don’t turn on, or if they do the brightness is not what I set in the script.

The Hue Hub (v2) is located near those lights has the latest firmware and it set to ZigBee channel 15.

I noticed the issue last night and checked the HA History, and the light was not listed as unavailable.

While researching this issue a bit more prior to posting this, someone suggested having many lights turning on at the same time might cause the Hue Hub to miss something since the HA commands happen quickly.

One of my thoughts to possibly solve this issue is to call the service again after 2 seconds:

action:
    - service: script.night_lights_on
    - delay: '00:00:02'
    - service: script.night_lights_on

Another idea is changing the Hue ZigBee Channel, but to what? I have 3 2.4ghz WiFi Hotspots utilizing channels 1,6,11.

Do you have any other ideas I could try to solve this issue?