1. What OS? (Wheezy or Jessie)
2. What class/size SD card? (ex. class 10 16gb)
3. What Model Pi? (A+, A, B+, B, Pi2)
4. Please describe the bug / issue. Attaching any relevant screenshots would be very helpful! Thanks in advance.
The range on the servo widget seems limited, as if the servo should be able to move quite a bit more. @bestes said they are investigating so if you are experimenting with servers be aware you may not have full range. ±90 would probably be about right since it seems to be moving about 1/2 range currently.