Another I that I think has always happened with section planes is that they obscure your model a lot of the "hide rest of model" slider in the model info/components dialog is towards the left. This happens when the section cut itself is outside of the current group I am working on.
It goes from being something like an 80% transparent white surface when the "hide rest of model" slider is at the right, to an 0% transparent grey surface when the "hide rest of model" is at the left.
Of course you can keep the slider at the right, or turn of the section plane, but would be nice to keep it but always have it mostly transparent. Does anyone run into this as an issue, or does it not affect anyone's work?
David