Hi Todash,
Dismayed to hear of your issues! I hope we can get things working. A couple things to start maybe.
(1) If you pull the top-docked fence away and then back, does it go back to being docked at the top?
(2) It definitely should be checked, but, could you see if "Move titlebar to the bottom" is checked in "More options" in Customize?
3) Similarly, try these settings in the layout panel, then try undocking / re-docking
4) Last, if still having problems, please try sending in your logs. No guarantee we can figure it out but we can give it a shot, for each those issues mentioned. First, go to Troubleshooting and enabled Advanced Logging, then reboot and reproduce the problem a few times, then go back and Create an Error Report package (instructions will be provided on how to upload). We can take a look from there.
Thanks and hope we can get this resolved.