This was a very common issue for me on one commander, who was playing via Steam. I still have a "Kill ED" shortcut on my right screen because of it. The other two commanders were playing via the standalone launcher. Neither ever had this issue. I switched the third commander to standalone about a year ago. I haven't seen this issue since.
The Steam install is slightly different, and those differences were the cause.
The Steam install is slightly different, and those differences were the cause.