Just upgraded to 4.2.0 and mostly everything has gone well I've come across a couple of issues and would be great to have your input!
My site is http://www.thetokyoblonde.net
(despite our site name, we're a family-firendly kinda site
On the main page I'm using tiles and used a custom style for each style (gradient/shadow). It has two columns but the first column lacks the effect whereas the second column is fine, it appears as it should do. When I load the page the first column momentarily loads correctly but then appears without my custom style. This is on Safari and Chrome.
Another issue is the header widget area. The header area (which has a 728x90 ad in a widget) was flush with the navigation bar below the header. Now there's a slight gap between the widget area and the nav bar. (Safari and Chrome)
Last issue is Firefox. Most of the widgets in the sidebar and header and the widgets below the bottom nav bar aren't appearing, however the tile post gradient effect seems to be fine.
I've tried fixing things but not getting much headway. Biggest issue is the Firefox one an I thought it might be the cache but I can't see a cache directory in my wp-content directory.
Any help would be greatly appreciated.