After the first dart is thrown the scoreboard shows still a 3 dart checkout instead of switching to a 2 dart finish (if possible).
example:
121 left
hit 20 with first dart
scoreboard shows "T20 9 D16 / T17 D25"
next dart misses
scoreboard still showing "T20 9 D16 / T17 D25"
possible solution:
creating different checkout lists responding to the darts left