Issues are definitely still present. For example, this morning, I sent one of my geos out to search for a copper deposit. As soon as I was done with that, I sent another out for marble. I got the notification that a geo was looking for marble. I went back to my star menu, and saw the first geo still available. He never went out. I had to send him out again. I have had that problem repeatedly, with geos and explorers, too. Sometimes buffs don't apply, either, and must be redone, and the same with placing buildings.
I had a skill tree open to upgrade one of my explorers. I was looking over my choices and trying to decide which upgrade I was going to take, so I had the menu open for a while. Every few moments, it would blank out and reappear.
And overall, it is running very slowly. Even the general game animations are slower than usual, almost like it is when you first start it and everything isn't loaded yet. But the effect never goes away like it normally does.