Crash on card capture

[rmontgomery]

device: iPhone 5
OS : 6.1.4

first time we've seen this crash while using card.io. we were not doing anything special, simply bringing up card.io and attempting to scan a card. we've performed the action hundreds of times with no issues, until now. Unfortunately, it seems to be fluke, as we cannot replicate on a normal basis.

see details below :

0 CoreFoundation 0x324d53e2 exceptionPreprocess + 158
1 libobjc.A.dylib 0x3a1d095e objc_exception_throw + 26
2 AVFoundation 0x3165a782 -[AVCaptureSession stopRunning] + 190
3 Qgiv VT 0x001670fa -[CardIOVideoStream stopSession] + 174
4 Qgiv VT 0x00176976 -[CardIOCameraView stopVideoStreamSession] + 118
5 Qgiv VT 0x00164614 -[CardIOCameraViewController stopSession] + 116
6 Qgiv VT 0x00164b7a -[CardIOCameraViewController didScanCard:] + 102
7 Qgiv VT 0x00164e74 -[CardIOCameraViewController videoStream:didProcessFrame:] + 176
8 Qgiv VT 0x00179b6a -[CardIOCameraView videoStream:didProcessFrame:] + 610
9 Qgiv VT 0x00167294 -[CardIOVideoStream sendFrameToDelegate:] + 172
10 Foundation 0x32ded49c __NSThreadPerformPerform + 456
11 CoreFoundation 0x324aa8f2 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION + 10
12 CoreFoundation 0x324aa158 __CFRunLoopDoSources0 + 208
13 CoreFoundation 0x324a8f2a __CFRunLoopRun + 642
14 CoreFoundation 0x3241c238 CFRunLoopRunSpecific + 352
15 CoreFoundation 0x3241c0c4 CFRunLoopRunInMode + 100
16 GraphicsServices 0x35ffb336 GSEventRunModal + 70
17 UIKit 0x343382b4 UIApplicationMain + 1116
18 Qgiv VT 0x0007d942 main (main.m:15)
19 libdyld.dylib 0x3a5fdb1c start + 0

[dgoldman-pdx]

@rmontgomery thanks for the report. We'll certainly look into it.