Solution found for my issue. I found a solution to run both iCue 5.9 and Trident Z Lightning control at same time without crashing now.
1. Uninstall Trident Z Lighting Control.
2. Update iCue to 5.9.
3. This is what is working for my Asus Z790 Dark Hero. I download a old copy of Asus Aura Lighting Control from Asus. 1.07.79. https://dlcdnets.asus.com/pub/ASUS/mb/14Utilities/Lighting_Control_1.07.79.zip Extract, Install, Reboot.
4. Inst all Trident Z Lighting Control. Install and make Trident Z start with Computer. Reboot.
Now i can use Trident Z Light Control to make G.Skill Ram with Rainbow color.
It doesnt sync with iCue. But I am back to where i was before all these happen. Which is acceptable for me.