After installing in /Applications, application crashes instantly, no sign of any menu bar or windows.

Here's a partial crash report:

Crashed Thread: 0 Dispatch queue: com.apple.main-thread

Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000038
Exception Note: EXC_CORPSE_NOTIFY

Termination Signal: Segmentation fault: 11
Termination Reason: Namespace SIGNAL, Code 0xb
Terminating Process: exc handler [59913]

VM Regions Near 0x38:
-->
__TEXT 0000000100000000-0000000101bd9000 [ 27.8M] r-x/rwx SM=COW /Applications/Mumble.app/Contents/MacOS/Mumble

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 com.apple.CoreFoundation 0x00007fff432c0fb8 CFMachPortGetContext + 4
1 com.apple.SkyLight 0x00007fff6930aa7e SLEventTapEnable + 49
2 net.sourceforge.mumble.Mumble 0x000000010013dfd9 GlobalShortcut::GlobalShortcut(QObject*, int, QString, bool, QVariant) + 233
3 net.sourceforge.mumble.Mumble 0x0000000100060648 MainWindow::createActions() + 104
4 net.sourceforge.mumble.Mumble 0x000000010005fcb3 MainWindow::MainWindow(QWidget*) + 2243
5 net.sourceforge.mumble.Mumble 0x000000010005a1fa main + 7498
6 net.sourceforge.mumble.Mumble 0x0000000100006d34 start + 52