Emulator

I don't understand what behavior you want it to have.

I want there to never be dashes for valid memory locations. Ideally, show whatever the values would have been if you had scrolled to them before unpausing (i.e., make a snapshot of all memory), but if that would cause performance issues, just show the current values. If the dashes are expected, I am probably misunderstanding the purpose of this setting.

Ah okay. I don't think we would want to make a copy of all memory on pause. One reason it doesn't update while running, is that it was a new feature and it seemed good to preserve the old behavior just in case it caused issues. Another reason is that it can be misleading to see updates while scrolling when the data may be changing. Requiring auto-update to see new values while scrolling prevents that.

Not erasing the memory widget on transitioning from pause to play was requested a long time ago.

Things may have ended up in an odd state due to all this.