That screenshot is too small...see if you can read it yourself. But anyways the 2018.7 release contains a full toolset upgrade so there may be new problems that are unrelated to any changes we are familiar with. We upgraded to a new version of CodeBlocks, wxWidgets, and the latest ming compiler. So there are 2 years worth of changes to those tools we are pulling in that could have unknown side effects. wxWidgets is the 3rd party library we use that handles all the windows GUI dialogs, panels, and controls and allows xLights to be multi-OS.