Interface sometimes stops interacting

[leaf-node]

Clicking on the stop button doesn't always stop the video. Retrying many times doesn't stop the video. When this happens, the drop down menus are also unresponsive. Clicking on the window close button times out, and then MATE offers to kill the process.

The video keeps playing and streaming in this case. It's possible to kill HUBAngl with pkill.

[soonum]

@sudoman could you launch in debug mode (with -d option) and log into a file (with -o <log_file>) each time you use HUBAngl? Otherwise it'll be difficult to know if it's a bug in the application code or in GTK+, or even in GStreamer.
Having said that, I also experienced this behavior quite a few time and I didn't succeed to find out the reason of the problem...