Hi,
sometimes wenn i type space for quick-filesearch, Alfred stops refining the search-results after a few keystrokes. I found this in Console:
5/10/13 1:39:11.502 PM Alfred 2[226]: *** -[__NSSetM addObject:]: object cannot be nil
5/10/13 1:39:11.503 PM Alfred 2[226]: (
0 CoreFoundation 0x00007fff8a8d8b06 __exceptionPreprocess + 198
1 libobjc.A.dylib 0x00007fff8849a3f0 objc_exception_throw + 43
2 CoreFoundation 0x00007fff8a9716bc -[__NSSetM addObject:] + 796
3 Alfred Framework 0x00000001000bf9ed -[AlfredMetadataQuerier updateResults] + 1790
4 CoreFoundation 0x00007fff8a88aeda _CFXNotificationPost + 2554
5 CoreFoundation 0x00007fff8a8bbb5e CFNotificationCenterPostNotificationWithOptions + 110
6 Metadata 0x00007fff8de4394e ___pushNotification_block_invoke_0 + 97
7 CoreFoundation 0x00007fff8a895cd2 __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 18
8 CoreFoundation 0x00007fff8a85647f __CFRunLoopDoBlocks + 255
9 CoreFoundation 0x00007fff8a87ac7c __CFRunLoopRun + 1948
10 CoreFoundation 0x00007fff8a87a0e2 CFRunLoopRunSpecific + 290
11 HIToolbox 0x00007fff91b51eb4 RunCurrentEventLoopInMode + 209
12 HIToolbox 0x00007fff91b51c52 ReceiveNextEventCommon + 356
13 HIToolbox 0x00007fff91b51ae3 BlockUntilNextEventMatchingListInMode + 62
14 AppKit 0x00007fff925f5563 _DPSNextEvent + 685
15 AppKit 0x00007fff925f4e22 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 128
16 AppKit 0x00007fff925ec1d3 -[NSApplication run] + 517
17 AppKit 0x00007fff92590c06 NSApplicationMain + 869
18 Alfred 2 0x0000000100001468 Alfred 2 + 5224
19 ??? 0x0000000000000002 0x0 + 2
)