windows don't hide on unity

[Zephyr]

when a window is hid only visible parts of the windows become invisible. but it remains as the window is on its place. i can change its size or move it. items of windows and windows themselves behind the hid window are covered by this one so i can't use them.

[Zephyr (pasha-pivo)]

after resizing and then unhiding the window i have this view
please, sorry for my english)))

[Zephyr (pasha-pivo)]

one more screenshot

[RedSingularity (redsingularity)]

Assigning to unity.
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[Jussi Pakkanen (jpakkane)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. We are sorry that we do not always have the capacity to look at all reported bugs in a timely manner. There have been many changes in Ubuntu since that time you reported the bug and your problem may have been fixed with some of the updates. It would help us a lot if you could test it on the development version of Ubuntu. When you test it and it is still an issue, kindly upload the updated logs by running apport-collect <bug #> and any other logs that are relevant for this particular issue.

[Launchpad Janitor (janitor)]

[Expired for unity (Ubuntu) because there has been no activity for 60 days.]

[Launchpad Janitor (janitor)]

[Expired for unity because there has been no activity for 60 days.]