I seem to be unable to sign a pdf document with AdobeAcrobat 11.0.20 on Mac OS X 10.11.6Exception Type: EXC_BAD_ACCESS (SIGSEGV)Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000004Exception Note: EXC_CORPSE_NOTIFYThis is a new feature...What is going on?