It's one of my favorite missions. I test bridge officers, weapons layouts on these missions. Not to mention with the new difficulty slider, it's more challenging and fun.

But now I can never play them. I get into the map and nothing, no enemies nothing.

I know this has been brought to your attention already, but the problem still persists and I enjoy these missions.
Today, doing my daily missions to get marks of exploration, I got three, (YES THREE), scan data missions and at least six enemy confrontation missions with no enemies to fight......

Could you at least tell us when you anticipate this to be fixed?

There are multiple threads on this matter and I support making as many a 100 new treads a day on this matter until it's resolved.