OpenCV 2 crashes with stackoverflow during inRange - c++

Question

I have created a multithreaded program that gets one frame on an image acquisition thread and the transfers it to the image processing thread. The image seems to get copied entirely but opencv crashes during the inRange function call. I'm going to briefly outline the flow and paste a few code snippets to show how the images are being copied around.
First: this is opencv 2.4.13
for the flow of data, I have one thread read from the camera and stick the image in an Mat accessible to both of the threads. I use a lock when accessing these threads to ensure the reading on CV thread doesn't happen as the same time a write is occurring on the image acquisition thread. Below are the code snippets of each piece.
Mat Temp=Mat(Instance->Frame->rows,Instance->Frame->cols,CV_8UC4);
CLEyeCameraGetFrame(*(Instance->CameraInstance),Temp.data);
//image acquisition thread
Instance->imgMtx->lock();
*(Instance->Frame) = Temp.clone();
Instance->imgMtx->unlock();
//image copy used in the CV thread
imgMtx.lock();
frame = Frame.clone();
imgMtx.unlock();
//declared variables
int LowH, HighH, LowS, HighS, LowV, HighV;
cv::Mat binary, hsv;
//image conversion in the CV code
cv::cvtColor(frame, hsv, CV_BGR2HSV);
//inRange call where it crashes
inRange(hsv, cv::Scalar(LowH, LowS, LowV), cv::Scalar(HighH, HighS, HighV), binary);
Where it crashes, it looks like the inRange function was trying to determine the type of arguments is was getting. Below is the relevant code in OpenCV
void cv::inRange(InputArray _src, InputArray _lowerb,
InputArray _upperb, OutputArray _dst)
{
int skind = _src.kind(), lkind = _lowerb.kind(), ukind = _upperb.kind();
It crashes on something in that last line. I can't really tell what is breaking here but opencv just keeps calling the type function until it hits a stackoverflow. I have gone through and at every point made sure the images can be displayed using imshow. I realize that's not the entire picture but I don't know what else to check. Any help would be appreciated.
EDIT: best I can tell, it hits the infinite trying to resolve the type of the Scalar. Below is the code for that function inside opencv.
int _InputArray::type(int i) const
{
int k = kind();
if( k == MAT )
return ((const Mat*)obj)->type();
if( k == EXPR )
return ((const MatExpr*)obj)->type();
if( k == MATX || k == STD_VECTOR || k == STD_VECTOR_VECTOR )
return CV_MAT_TYPE(flags);
if( k == NONE )
return -1;
if( k == STD_VECTOR_MAT )
{
const vector<Mat>& vv = *(const vector<Mat>*)obj;
CV_Assert( i < (int)vv.size() );
return vv[i >= 0 ? i : 0].type();
}
if( k == OPENGL_BUFFER )
return ((const ogl::Buffer*)obj)->type();
CV_Assert( k == GPU_MAT );
//if( k == GPU_MAT )
return ((const gpu::GpuMat*)obj)->type();
}