Think you guys have basically covered every issue I've had with zones. I've had them all - so I've deleted all my zones and will try them again next beta.
Its next to impossible to reproduce the glitch at will, the steps seem to be:
1. Make a really awesome level
2. Place all your zones exactly how you want them, set up their scripts
3. Save
4. Welcome to hell
Being a little more serious - I do think the issue seems to appear as a result of saving, or at least its usually just after pressing sae I notice.
I also have had win zones that do nothing at all.
Custom Mac Pro (2014): OSX 10.9 (Mavericks) and Windows 8.1 Pro: Octa-threaded Xeon E5 v2 @ 3.7Ghz [9775]; Dual AMD FirePro D500 (3GB VRAM Each) [3769]; 12GB RAM [2517]; 512GB SSD [9074];
At the detected score [passmark 9074], my SSD is ranked 3rd of all SSD's in the charts