Any program has bugs, when you introduce new features, you potentially create new bugs too. While I try my best to test my code before releasing it, I simply cannot test every possible case. If you find a bug and you have at least a vague idea on how to reproduce it, send me a bug report! This way I can correct the problem in the next update.
Please only post bug reports in plain english to avoid misunderstandings. It’s better to give too much information than not enough.