I have created a support thread for the new "Light Effects Tools"
[Early Release] Light Effects Tools - 
Custom Apps and Drivers / Custom Apps - Hubitat
If you loaded the new tool yesterday please update to the latest release. I found a bug yesterday that if hit could have very negative impact on the hub. It would only impact you if used a single Interval in the "Light Effects Show" Child app.
I have also released the second tool i mentioned above "Light Effect Grouping" It will basically allow you to create a Scene list across multiple devices. This is what i expect to replace the low number hard coded curated scenes that got disabled in the last release. Those were largely built for me, and anyone that had Wiz bulbs. Now with a few more steps we can simply use this tool to link up as many devices as we want and it will build a scene list that can be used to activate scenes together across multiple devices.
In theory with these new tools allot of stuff could get standardized between Lan API and Cloud API , but that is a much bigger nut to crack if we ever decide to go down that path.
