Cursor size in working area is huge InDesign CC 2018 Win
The ID cursor (black) when over the workspace is huge. It is normal size when hovering over the tool bars (white), but when you move over the workspace it is supersized. This occurs when working on an external monitor, but is scaled appropriately on HD Laptop Screen.
Thanks for reporting.
We will review the bug
I am also having this problem, although it may have coincided with a cat-on-keyboard related incident and so still exploring hotkey options.
Have found numerous queries about this problem online but no solution within InDesign.