I pretty much have the same problem as this post:

https://community.tp-link.com/us/smart-home/forum/topic/590224

I set up a preset for "Christmas" at 10% brightness.  It works fine.  I can manually click on it, and get the correct effect and brightness.  But then when I try to create a schedule using the preset, it shows the correct effect but at 100% brightness.  This makes scheduling presets at anything other than 100% brightness impossible.  Any suggestions?