Hello,

We have noticed an issue when using qtype_ddmarker questions.

When the image is large (or the display is small), it is sometimes necessary to scroll to place the marker correctly.
However, if you scroll while dragging the marker (holding the left click), the marker is placed normally, but its position is not recorded correctly.
Upon review, the marker is completely misplaced.
It seems like the scrolling action shifts the Y position of other markers...

I am attaching a test activity, created on a fresh Moodle installation, along with some screenshots. I hope I have been clear enough in my message, but please don't hesitate to reach out if you need further clarification.

Thank you and have a great day!