nisus.com

MWP 3.0, MacOS 10.14.1, MBP13 Retina, Early 2015.
While working with Table, the mouse alternates between the I icon and the arrow icon very quickly and the mouse cannot be moved in any direction without a great difficulty. As if there are brakes applied and I am working against them. Once the mouse is outside the Table area, the mouse works normally.

This is a problem that was reported to us once before, a long time ago, for version 2.x. The cause of the problem did not lie with Nisus Writer itself, but rather seemed to be triggered by an external monitor (ie: an extra screen). Do you have such a setup?