I have FileMaker Pro 11v2 installed (for various reasons), anyway this appears to be working perfectly fine under OSX 10.8
All buttons you describe are showing / working although I have not thoroughly tested.
I also upgraded to 11v4 and the same buttons still appear to be working for me at least.
I know this does not help, just saying "well mine works" but I am happy to experiment :)
Also, was the solution file converted from another version of FM or was it created in 12?
Thanks SWS. I found the issue. I had two 2empowerFM plug-ins and those were incompatible with the new OSX. I upgraded the plug-ins and everything is working.