Odd, never heard of this issue yet, can you provide more details on the matter? 1. What OS do you use? 2. Can you send a screenshot? 3. did it happen in other games / free version?
Possible solutions:
1. Try running the game on another OS (PC / Android / Mac / Linux)
2. Try running the Android version on blue stacks (Bluestacks.com)
3. If nothing works, let me know and I'll issue a refund.