Please post a screen capture of the entire LightBurn window, showing the artwork and your ‘Cuts’ window. What type of objects are being used? Vectors, Bitmaps, a combo of both?
Please describe how your project is built.
The example provided above are simple vector shapes, all on the same layer set to ‘Fill+Line’. When using the fill features, LightBurn toggles ON and OFF based on object boundaries as described in the following FAQ post.