P: Rulers indicators appear offset from real cursor position

Photoshop CC 2015.0.1 - With the rulers visible, normally the movement of the cursor on the canvas is followed by some thin dotted lines (one on the vertical ruler, other on the horizontal ruler) that move along the horizontal and vertical rulers providing you with some orientation of where you are in the canvas (even if no "real" guide has been placed.

But for some time now, these thin dotted lines on the rulers appear offset from the real cursor position on the canvas. I've tried changing the units, disabling graphic procesor and doing other things, but they don't "snap" back to the real cursor position. When drawing out a guide, I can place it precisely, and the info palette also shows the correct values. It's just that this "reference" on the rulers is always offset (please note I'm not talking about the scale being offset (that would be fixed by double clicking on the rulers corner/origin).

I'm attaching a picture, I hope you understand what I mean. As you'll see, the dotted lines, circled in red, are offset relative to the cursor position on the white canvas.

I tried to find a similar report but couldn't find any. I'm using Windows 8.1 x64 and PS CC 2015.0.1 (latest version). Anyone else noticing this kind of behavior? Thanks.