I am having similar issues. To tell the truth I'm not entirely sure if ohanah caused the problem, but it cropped up around the same time I installed the component.
I know there are skin problems with these two components working together, so to configure ohanah I switched to the default admin template. When I switched back a day or two later I noticed something strange in the back end.
Firstly some styling issues had cropped up. It seems that there is something wrong with the colors.css.php file, since a lot of the backgrounds and text colors and images aren't picking up. When I use a code inspector the properties seem to be there, but the values are missing.
There were also some functionality issues. When I unpublished elements they seemed to still be active in the fornt end.
The whole system seemed to be freaking out a bit, so I reverted to an older version. That sorted out the functionality issues, but my backend styling is still screwy.
Like I said I'm not convinced it was ohanah that did it, since the version I reverted to was one where the component was already installed. Some of my automatic server backups seems to be corrupted as well, so I could very easily be a problem on their side.
If you will allow it I can pm you some login details for you to check it out. I'd appreciate any assistance you can give me.