I'm not sure that this is the same as your issue, but I had strings behaving strangely.
When I slide the sliders up and down to get say Red, then Blue then Green etc, it seemed to be out in terms of the color.
The more strings I checked, the more the strings acted strangely
I puzzled over this for a good while until I realized that my string count was out by one. I had numbered then in-correctly in LSP.
Each string was out by one, so the second string it was out by two, and the third string was out by three and so on.
So, double check your channel numbering in LSP vesus what you have programmed with the utility and make sure they match exactly.