Hi, New to xlights this year and am amazed at how much I have been able to make it do, but I'm stuck on these icicle lights. I have 3 sets around a guttering but in some sequences they do different effects at times looking slightly off and at others work together as one. I'm sure it's somthing on a software level. I've got all 3 sets in a group but doesn't always fix the problem. What am I missing? Thanks for help in advance.