While reproducing crash for RT-24431, I got many crashes inside glass.dll.
To reproduce:
Run app with URL from RT-24431 and click randomly on different clips on left side. It will crash within 5-10 clips.
Did not notice any specific order.

Following error where outputted in NetBeans:
Error:800401f0 in CoCreateInstance(CLSID_DragDropHelper, NULL, CLSCTX_ALL, IID_IDropTargetHelper, (LPVOID*)&m_spDropTargetHelper)
COM Error:800401f0 CoInitialize has not been called.