Is there anything worse than bugs that you can reproduce easy but lack exception/error messages so you can't fix it?

I'm working on a hobby project for Android and I can't solve a bug and it's killing me (the whole project depend on it). I went through all phases:

1. I notice the bug early but couldnt reproduce it so I let it be.
2. I notice it happen a lot when I started to use the framework for real. Decided now that I need to fix it.
3. Found the exact way to reproduce it.
4. Trying different ways to fix it, nothing works.
5. Write question on stack overflow, no answers.
6. ???

It feels like if you can reproduce the bug 100% of the time it should be easy to fix right? Well hell no - no exceptions, no error message and adb hangs until I stop the procedur. The last kick in the balls? When I stop the procedur I get all logcat messages back and everything look like normal. Just give me a damn error message! Tell me what you're doing or what I'm doing wrong!