In Unity 4.2.2f1 (using older version as too many issues with 4.3.x), OSX Mavericks
My app for no discernible reason started hanging every time I hit play. I restarted Unity, then the computer, then reimported all assets, then deleted everything from the project directory except for the Assets folder and it started working again. So I re-entered the player settings/quality setting etc. and … it started hanging every time on hitting Play. No console output, no log output, Unity just hangs as has to be force-closed
Eventually tracked this down to being caused by the company and product name in player settings. If I set these to what I used to have them then I get the hangs. if I change either to something slightly different then the app plays just fine.
Is Unity caching something, somewhere, based on a company/product combination key that’s become corrupt? Any other ideas what could be causing this behavior?