Just in the plugin folder find su_dynamiccomponents.rb (open it with some ruby editor in the plugin store) and add to the beginning of the code: "UI.start_timer (5, false) {"
and at the end of the code: “}”. It will load DC plugins after all other (5 = seconds, false) plugins, as well as Vray. So the Vray load will be normal and you will be able to use all the benefits of sketchup and vray.
Plugin folder on win: C:\Users\User name\AppData\Roaming\SketchUp\SketchUp 2018\SketchUp\Plugins