Bridge 6.3 and Bridge CC incompatibility (bug?)

Question

I've installed Photoshop CC and Bridge CC.  I already have a licensed copy of CS6.3.
I now find that, when I reboot and open Bridge 6.3, it crashes upon being closed (indicating that Bridge "unexpectedly quit," and it throws up a page of error messages).  Sometimes, after I open Bridge CC, which, at least so far, is working fine, Bridge 6.3 works correctly, closing without crashing.  But it continues crashing upon closing far more often than not.
Bridge 6.3 was working just fine prior to my installing Bridge CC.  So I suspect there is some unfortunate interaction between the two. Whatever error messages are created during the crash have been sent to Adobe via their automatic link. 
Has anyone else encountered this anomaly?
thank you,
grampus

Answer 1

Here is the crash as reported by the CS6 Problem Report:  It clearly has to do with Switchboard.
Thread 6 Crashed:
0   SwitchBoardClient                       0x000000011428126e adobe::switchboard::ConnectionQueue::processOneRequest() + 236
1   SwitchBoardClient                       0x0000000114281c31 adobe::switchboard::ConnectionQueue::run() + 149
2   SwitchBoardClient                       0x00000001142868a3 boost::_mfi::mf0<void, adobe::switchboard::ConnectionQueue>::operator()(adobe::switchboard::ConnectionQueue*) const + 97
3   SwitchBoardClient                       0x0000000114286911 void boost::_bi::list1<boost::_bi::value<adobe::switchboard::ConnectionQueue*> >::operator()<boost::_mfi::mf0<void, adobe::switchboard::ConnectionQueue>, boost::_bi::list0>(boost::_bi::type<void>, boost::_mfi::mf0<void, adobe::switchboard::ConnectionQueue>&, boost::_bi::list0&, int) + 65
4   SwitchBoardClient                       0x000000011428694e boost::_bi::bind_t<void, boost::_mfi::mf0<void, adobe::switchboard::ConnectionQueue>, boost::_bi::list1<boost::_bi::value<adobe::switchboard::ConnectionQueue*> > >::operator()() + 54
5   SwitchBoardClient                       0x000000011428696c boost::detail::thread_data<boost::_bi::bind_t<void, boost::_mfi::mf0<void, adobe::switchboard::ConnectionQueue>, boost::_bi::list1<boost::_bi::value<adobe::switchboard::ConnectionQueue*> > > >::run() + 28
6   SwitchBoardClient                       0x00000001142222be thread_proxy + 89
7   libsystem_c.dylib                       0x00007fff8c0a97a2 _pthread_start + 327
8   libsystem_c.dylib                       0x00007fff8c0961e1 thread_start + 13
Thread 6 crashed with X86 Thread State (64-bit):
  rax: 0x0003000000000000  rbx: 0x0000000114083f50  rcx: 0x00000001145d5b20  rdx: 0x0000000114083fc0
  rdi: 0x0000210000002203  rsi: 0x0000220000002200  rbp: 0x00000001145d5d80  rsp: 0x00000001145d5b90
   r8: 0x0000000000002060   r9: 0x00000001145d5b20  r10: 0xffffffffffffffff  r11: 0x0000000000000206
  r12: 0x0000000000008903  r13: 0x0000000000000000  r14: 0x0000000114086d00  r15: 0x0000000114222265
  rip: 0x000000011428126e  rfl: 0x0000000000010202  cr2: 0x000000010d2a1000
Logical CPU: 1