We had a couple of slightly glitchy releases of OpenLabyrinth in the last wee while. I am pleased to tell you that v3.3.1, just released on Github at https://github.com/olab/Open-Labyrinth is good and stable.

If you want maximum stability but don’t care about the latest features, v3.11, released a while ago is probably the most stable.

Thanks to all of you who continue to give us feedback and help us with testing new features and bug fixes.