Looks like a rounding issue - I would bet that at the end of the first match or training session this player is involved in, you'll get the extra star...
If you still have to issue, you'll need to send a ticket to support@Nordeus.
Any formation or tactics advice given is based purely on experience with my teams...
Check his stars on the Squad Overview screen. I just noticed all my players are missing a star in the individual player stats screen.. or whatever it's called.. the ones your pictures are from. But the Squad screen shows the right amount of stars. This happens when I check opposition teams/players too.
(This wouldn't explain the missing skill point tho.)
As I checked for several new signing players earlier, I noticed that the value of quality attributes before signing were slightly different from those after signing. Even the calculation of average of 3 categories of attributes were incorrect before signing. In your case, it is really possible that the qualities of the player have been changed.
I only checked this after implementation of new version of T11, and I mainly checked with old version.
Here is one of the examples
http://forum.topeleven.com/top-eleve...-signing.html#