I don't know if I'm being incredibly stupid here, or if sketchup/osx is having a laugh.

I've just spent the last couple of hours working on some variations of this thing I'm working on, saving as I went, and saving multiple copies of each. Come the end of this session I had 2 different ideas up on screen, each with their saved name at the top. I then saved both using "save as" to ensure there would be no problems, and now they're no-where to be found. They aint in the last opened tab, on osx's desktop, anywhere. Is this a current bug with sketchup and osx? It makes it completely unusable obviously, as it seems only random things are being saved.

Any ideas?