Missing layers in sliced model
We seem to be having an issue with how the slicer interprets the object.
You can see that no matter the orientation we put the model, the missing layers seem to show up in different places.

You can see the warning, however because the missing bits seem to show up on different planes, depending on the orientation it's a bit confusing.
What is the best way to troubleshoot this?
RE: Missing layers in sliced model
You can see dark green areas as well as purple edges on your model, those are visual indicators of a broken non manifold model. Fix your model and it will slice correctly. You will have to post the model and zip it up to attach here if you want further analysis of what is wrong with it.
You didn’t include pics of the model tree listing, is there a yellow triangle next to it ? That is also a notification of a broken model. If you are on windows you can try using the repair option from the right click menu but that doesn’t always work depending on what’s broken.

