Is anyone having a problem saving customized menus and subPalettes on ZB4 R2 on a Mac? I can store my Config but when I access my customized menus, the subPalettes are empty. I uploaded before closing zbrush and after reopening zbrush screen shots of my custom palettes. Any help would be greatly appreciated.
install the plugin at the bottom of this FAQ:
http://www.zbrushcentral.com/showthread.php?160733-ZBrush-4R2-Troubleshooting-FAQ
I had the same problem… yeah I know, it seems like it should’ve been an obvious catch during beta testing, but apparently not 
You are a life saver! I literally spent almost an hour customizing my UI. I thought it was lost forever. A few things are still not there but the majority remained. Thanks again!