int ImDrawList::_CalcCircleAutoSegmentCount(float radius) const
{
// Automatic segment count
const int radius_idx = (int)(radius + 0.999999f); // ceil to never reduce accuracy

if (radius_idx < IM_ARRAYSIZE(_Data->CircleSegmentCounts))
return _Data->CircleSegmentCounts[radius_idx]; // Crash Here
else
return IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, _Data->CircleSegmentMaxError);
}

I Use Inject ImguiDx11 Dll , When I draw the rect, and I use rounding, crash in some cases, and when I debug the code, it crashes here. return _Data->CircleSegmentCounts[radius_idx];

I don't know why。

return radius * 2;

I use like this, no crash