I think I found a bug in the vectrex emulation with mess / ume.
And this bug is present since at least version 147 (the oldest version I tested).
The bug occurs when I play with minestorm 2.
I made a video of these bugs: http://www.jammaplay.com/en/video-4KXRJP
As you can see, at 2m35, 5m23 and 6m22, the game freezes, the screen goes black and sound bugs occur.
And if I make no input during this time, the game continues normally.
But this is very frustrating: on the original hardware these bugs do not exist.
I do not know what may be causing the problem, but I am ready to help by doing all the tests that you ask me to do.
For information, I'm on linux and I compile myself my own version of EMU.
And from what I'm reading on the source code, Mathis Rosenhauer wrote the vectrex driver, but I can not find his email address.
Do you know where I can contact him ? Or does he visit this forum? Or someone knows him ?
Thank you very much.
PS : INP file url => http://www.filedropper.com/minestr2