For bug reporting you can go to https://github.com/openpatch/bitflow/issues/new and describe that you have encountered. It is easier to fix the bug, you also provide information on what did you expect to happen. If this bug is present in an open source project, please leave a link to the source code. Pictures, Gifs or videos are also welcome.
If you are not sure about reporting, feel free to discuss it at our Matrix Space.