Thank you so much for the very quick reply, I have used the follow me extrude tool for hand railings so i will try either getting rid of them or placing the section plane away from them. Also I thought scaling the project down might have helped so I shall scale back up.
I will let you know how it goes.

Thanks again.

Hey guys, new to sketchucation. My friend recommended I get Zorro as I have started using 3d rendering software and want to take sections and render them. However, I have been reading through this thread and many others like it because sketchup keeps crashing every time I try to "slice model at section" it says "cuttinggroup#2" at the bottom left hand corner of the window.
I have tried pretty much everything, disabling other plugins, purging unused, exploding all groups and components (outliner is showing just one entry) I have tried opening in su7 and 8 both pro.
I really can't understand why it isn't working, I have seen much more complicated models cut by Zorro2.
I am using a Mac but I don't think that should make a difference.

Please, any help would be much appreciated.

Thank you for taking the time to read this.