Reported by @msgilligan via https://github.com/OmniLayer/omnicore/issues/298:
To reproduce:
- Launch OmniCore-Qt by double-clicking
- As soon as the start screen with the 'Verifying Blocks' message appears, type Command-Q (quit)
- It will take a while before the quit command is received and acted upon, but when it is the app crashes.
Attached is the crash log.
Tested with Bitcoin Core 0.10.2 and 0.10.4, not explicitly tested with 0.11 or master.