I just released another update to Barista 1.7, fixing some minor issues with renders.
The first update fixes an issue where the End Frame could be set to a frame lower than the Start Frame. When this happened, it would cause the render to fail, and no frames being rendered. With this update, you can no longer set the End frame to a number less than the Start Frame.
Since Blender needs an active display for a lot of post-processing effects, Cycles renders now have access to a display to allow for these post-render processes. Such processes include Grease Pencil rendering.
That's all for this update, and happy rendering!