So, I’m pretty sure I found a bug, but when I go to report it, the bug reporter window won’t open. I feel like I’m banging my head against a wall here. The process starts (I can see it in Task Manager), and I get a busy cursor for a few seconds, but nothing happens. In Task Manager, it shows UnityBugReporter.exe using a constant 50% of the CPU. I’m using 4.0.1.
Maybe it’s being blocked by anti-virus or something?
This is not a known issue, try launching from help → report a bug or finding the application in the unity installation directory on disk and double-clicking it’s icon.
Thanks,
Chris
I’m still having this problem. Neither of those is working; they both do the same thing. I don’t have an anti-virus installed and the program is allowed on my Firewall. I’m using Windows 7.
Hmm, are you using latest Unity editor 4.1.2?
I wasn’t, but it’s still not working after the update. I am using Unity Pro.
It should be noted that this also doesn’t work when Unity crashes and tries to open a bug report by itself. It will also open multiple instances of the Bug Reporter.
Is your project just really big, perhaps?
Unity will walk through the whole project and attach it to your bug report. If your project is several GB´s big, this can take forever.
@CreativeChris: It would be good if this behaviour could be changed.
I am still having this problem and now seeing that the same behavior occurs on built game executables. The application will run and show up in Task Manager using 50% CPU, but won’t ever show up on the screen or in the Alt+Tab menu.
Edit: A Unity uninstall/re-install did nothing.
This is still happening on 4.2.1. No idea what’s causing it.
You should report a bug …heehee 
Have you tried to instal earlier version, like 3.5 or something? Not saying you should use old version, but just the check if its U4 problem.
edit: and try to run bug reportter as admin …could be file permission problem?