From the 11.0.30 Release Notes:
“> The project cursor no longer changes to a thin line in Windows 10.”
I was so hoping this would be fixed. So only after zooming/swiping for 30 seconds in Cubase 11.0.30 the bug is still there! Zooming in on an event and swiping using the timeline corrupts the cursor since Cubase 10. First it goes grey and after some more moves it’s a thin black line. Already reported to support and logged as Bug Number CAN-32848.