Black Rectangles On Screen

[Mr. K]

This is what I see when I switch from one document to another. It goes away if I scroll or zoom.

 

[Chris_K]

HI Mr. K

Looks like a redraw error. Are you getting this with any combination of document or is it documents of specific objects? Are you able to provide any specs about your mac? Unfortunately it's not something I've been able  to reproduce thus far

[Mr. K]

It's happening with any of my files, but only if there's two files open in AFPub, and then it only happens on the file in the right window (Look close at my screen shot).I have a MacBook Pro 13" Touch Bar 2016. Intel Iris Graphics 550 1536 MB. I also have an LG 27" Fineline Display connected to my MacBook Pro.

[JohnPet]

I've seen this, too, this morning, under similar circumstances - two docs open, one had random black rectangles (MacBook Air mid-2013, Mojave).