Good Evening @trent
I’ve read about this in the past, but up until now, I’ve never experience the problem.
A little background;
The model and Layout I have attached using Dropbox, were created in 2017 Pro. In this particular model, ages ago, in 2017, it developed an issue where it would fix itself when saving. It seemed to be when I added the site location ages ago in 2017, and then used Skalp, although those two things are probably unrelated. I do remember doing an intersect faces with the site plan to delete some of the unwanted stuff. It seemed to be since then that it wanted to fix itself.
Anyway, I lived with it. Got the planning permission, and started to develop the Building Regs drawings in Sketchup 2017 Pro and Layout 2017 Pro. All good and no problems with lines dropping out.
I’ve been using Sketchup 2018 Pro now for a while and it seems better than 2017, so I had the bright idea to open the Sketchup file in 2018 and Save. Did the same with Layout.
I’m now experiencing this phenomenon, of lines dropping out in Layout, Hybrid and Vector mode. The only mode with works is Raster.
I have also noticed that I can bring some lines back by increasing the viewport size.
I’ve been back into the model and managed to fix some of the geometry, hoping that this might solve the problem.
However, I’m stuck, and it is now really bugging me.
I have just completed today another set of drawings, all done in 2018 with no problems, using Skalp as well. I use Skalp all the time.
I would really appreciate some help and advise, please.
I’ve also attached a screenshot image.
The Sketchup and Layout file should be following via a Dropbox Link…