Hello sir!
If a flashing arrow doesn't disappear when you set the switch to the correct position you probably wasted to much time searching for the correct buttons in an earlier stage of the mission.
Until you get the hang of it I suggest you pause the sim when you get a new comm message. You can still scroll around the panel and flip switches while paused.
Usually you got lots of time, but there are one or two critical moments during launch that can be missed. It would be nice to know were in the mission this happens and if it happens at the same time every mission.
After 15 years of debugging I'm pretty sure all bugs are gone.
ADMIN