Mahjong Safari HD - has an uneven number of animal pair matches.

Mahjong Safari HD continues to complete a Safari after an uneven number of animal pair matches (9 or 11 instead of 10).  When the Safari is complete, I still have one animal pair left on the board to match and complete before moving to the next panel.  This problem usually arises with I have 60-70 Safaris left to complete before reaching the next rank.  It usually resolves itself by the time I need only 15-20 Safaris before reaching the next rank.  This has been consistent over the last 4-5 rank increases.  Is anyone at POGO aware of this issue?  I can do a video capture of this and send it to you if it will help you resolve this glitch.