I’ve been working on the most recent 15x15 extra puzzle and, for some strange reason, it has suddenly stopped displaying correctly.

I use an iPad and I find that the display is easiest to read when I have the numbers lined up below the puzzle. I then adjust the size so that the full puzzle can be seen.

When I was working on the puzzle last night, I think I may have accidentally hit the size button and the green highlighting of the cells that I had highlighted disappeared. Hitting the size button caused the highlighting to come back, but the display is now too large and I can’t see the entire puzzle at one time.

This is making the puzzle much more difficult for me and I’ve no idea what I may have done to cause this or how I can rectify it. Any help would be greatly appreciated.

I managed to find a workaround. I pressed the size button until the puzzle was the correct size. This caused all the highlighting to disappear, so I went back individually over all the cells that had previously been highlighted and I highlighted them again. For large puzzles I find it extremely difficult to make progress without using the highlighter.

Anyway, back on track and hope to finally solve the puzzle sometime today.

Thanks for the report, will check.

This may have to do with the new code for colouring the cells (which was needed because of the new dark mode).
The method I'm using now is better, but can still conflict with old code. I'll test this.

Paul,
This happened to me too.

I somehow lost my green highlighted cells. I was not very far into my session.

I just refreshed / reloaded the puzzle.

.. this should be fixed now