Bug fix needed – Logic Puzzles Daily Review

I love the concept, but there is a bug that needs to be fixed. If you accidentally mark a square on the grid and remove the mark, it sometimes removes marks from elsewhere in the grid. This means you have to go back through the clues again to get back on track. It took me 20 minutes to solve a puzzle that should have taken 5 minutes. Uninstalling.
Review by ihartmyiphone on Logic Puzzles Daily.