Not sure if these bugs have been addressed yet, I am using a MacBook Pro, when I first install ZE2, everything seems to work fine, the MIDI chase feature, and so on, as soon as I make some tweaks, export the MIDI directly to my ZX, it does it one time but says there were errors. From that point it won't show the chase animations, and it will not export or import to or from my ZX. I end up having to use SYSEX Librarian again. If I uninstall and reinstall the software, it works again one time and then has errors again. Just wanted to throw that out there.