Hello codex,
Thanks for your interest and your kindly words. I want to answer you by reversing your question's order:
3º Maybe I need to indicate this in some way, but, the splash screen editbox buttons only works if you had previously saved the application. This is valid also for the application's icon, for example, and this is because the program try to establish this kind of stuff relative to the application and not using absolute paths. Then we can share the application or move it into another system without loss such paths.
2º Certainly you found a mistake with the "SelectDirectory" procedure, which is currently used in four program's places. I update App Builder right now and the mistake has been fixed in all the places where the "SelectDirectory" is used. Now the Desktop directory is the default one (when needed), but we also can navigate to others directories and drives. Thanks for the advise codex.
1º The debugger address are not changed, then, probably we have here some other issue. Remember that you no need to try it with an external browser (you can do it, of course, and can be very good) but you must view the application running in the debugger browser. My recomendation for now is delete your app's "_Compiled" directory and try to compile it again. If this fail, please, tell me codex.