Since I updated to SU 2018 I am having a problem with Layout. When I render a model in Hybrid mode my Leader text disappears as well as my dimensions.
Interestingly my dimension lines appear, just the measurements are gone. If I switch to either of the other two render modes the text and dimensions reappear.
I did find a problem with your SketchUp file. Evidently there’s something located at a great distance from the origin. Hitting Zoom Extents makes it appear as if your model has been erased. I copied the plan and dimensions to a new file to fix that issue but I see the same problem with the dimensions and text.
I’m not sure what the problem is with your dimensions and labels, though. I deleted them and replaced them (some of them) and I have no problem getting them to show in LO rendered in Hybrid or Vector.
I just saved it in 2017 - same problem with zoom extents. I erased one layer at a time and it was my boxes layer that was causing the problem for some reason. This layer was simple a trace of the outline saved as a group and put on its own layer.