how else is here be for CTC announced Killer Sudoku

I started getting crashes while playing, no error reported but found this logs, trying reinstalling and verifying files to no avail. I uploaded Player log and crash.dmp to a github gist, but maybe the format got broken. https://gist.github.com/saiema/189d44ae7ada889f0a2a7c53b621b8aa...

Hint #6 concludes that 3/5 or 5/6 are the only possible contents for R4C7/C8. This implicitly rules out 7 or 8 from being in either of these cells, without justification in the hint. Something is missing or simply wrong.

Just got the game and went through the first couple of puzzles. It's a super fun game mode and one that challenges you in very unique ways. As usual, the interface is top-notch, very customizable and familiar. But as a player who uses SHIFT and CTRL for pencil marks, I found pretty quickly that the keybinds are switched around. I'm not sure if this is intentional, but I'd appreciate if this could be rolled back to the same scheme as all the other games, or at least give us the option to do it. Is it just m...

Puzzle 13 has minimal hints, and I don't understand what hint 1 and 2 are trying to say. Can anyone offer some help? Based on the spots out of boxes in the whole puzzle, I've narrowed down a lot of things, but am stuck and have no clue what the hints are trying to say. Thank you for any help you can offer....