The screen snapshot below shows that my planet can hold a maximum of 8 citizens and that I supposedly already have 7.  However, I can only see 4 citizens (which I believe is correct).  Is there some new mechanic I am unaware of or is this a bug?

OK, while I was taking screen snapshots I figured-out what is going on.  I left the planet view then re-entered the planet view and 3 new Baratak citizens appeared (screen snapshot below).  It turns out that the planet had just completed building the Infinite Gardens which grants 3 Baratak citizens.  Apparently, the count updated, but the list of citizens was not updated at the same time.

I recommend that you synchronize the code to update the list of citizens at the same time that you update the count.