If you find a matching Issue, you may then find that:
- the bug has already been fixed (but not yet in a released version) - that there is a work-around that you can use until the bug is fixed - that's it's not a bug but a mistake on your part (make sure to search both open AND closed Issues) - or it's an active, unsolved bug, and your input may provide valuable clues
If you are then convinced that you have found a bug, and it has not already been reported, then you can create a new Issue and report it.
If everyone will please cooperate by reporting bugs where they are meant to be reported, and where they will get appropriate and effective notice, that will help both to improve future release of jQuery Mobile, as well as remove a lot of unnecessary and ineffective clutter from this forum.
If you do post here about a bug after first checking for it on GitHub and possibly filing a new Issue, please provide a link to the Issue, so that others can follow progress on the Issue.