Niantic has stated that they're working on a fix for a new bug in Pokémon GO related to throw accuracy according to a tweet from the app's official account.
The bug is stated to increase the odds of escape and omit the XP bonus (likely referring to the "Nice", "Great", etc. bonuses for on-target Poké Ball throws).
Some trainers have suspected that a bug or undocumented change had changed the capture rate. Multiple anecdotal threads on the /r/pokemongo subreddit as well as more detailed analysis (such as this one on /r/thesilphroad) have presented conflicting information as to whether or not the capture rate had changed. Some players reported low CP Pokémon were escaping from Poké Balls at an unusually high rate while some others had no problem whatsoever.
Another issue that was confirmed by many (including myself) was the removal of an experience bonus for throw accuracy. Capturing a Pokémon requires that you throw a Poké Ball into a superimposed white circle. A second interior circle is colored to indicate the capture difficulty (on a gradient from green for easy captures to red for difficult captures). This interior circle gradually shrinks until it reaches the center and the loop begins again. Three bonuses were previously available for landing a thrown ball into the circle depending on its size: Nice (10XP) for the largest size interior circle, Great (50XP) for a medium-sized interior circle, and Excellent (100XP) for the smallest size interior circle. These bonuses have not been properly applying for the last few days. The 10XP bonus for throwing a Curve Ball still functions properly.
The tweet follows a Facebook post from Niantic regarding the current state of Pokémon GO. The game has had a tumultuous week which included the removal of the "three steps" portion of the tracking system in a patch as well as the closure of third-party tracking sites. The creator of the Pokévision tracking site responded with an open letter to Niantic over the closure.
I noticed some degree of capture issues myself. I had the whole "10CP Weedle takes four Poké Balls to capture" problem a few times but it wasn't consistent - I also had plenty of captures that provided a reasonable level of difficulty. Some people are speculating that the change in capture difficulty and the removal of XP bonuses for precision throws was Niantic intentionally making the game more difficult in order to sell more Poké Balls. However, the inconsistency I personally experienced leads me to believe that a bug is a much more likely scenario. I'm keen to see how soon they fix it!
What do you think of Niantic's statement regarding this bug? Have you experienced difficulties capturing Pokémon or have you not had any unusual problems? How do you feel about how Niantic has been communicating about their game to the community? Let us know in the comments below!