I am currently using Maya 2016 SP5 in a Linux Environment.
Was wondering if anyone have encountered if the running processes within Maya will cause Undo functionality to fail? I asked this because while having remove the Prefs folder, sometimes while the Undo is back working normally, it will soon pops back to not working, seems like an on/off thing.

Other than going to the Preferences Window where Undo is checked as On and Queue is On too.. Are there any other places that I can do to resolve this?

Additionally, is it possible to get the list of actions/commands in Undo, something like the history log of what comes next if user hits on Undo command?