Weird monitor issue - mouse disappears on right side (GIF)

[slekvak]

I have a strange issue with my MacBook Pro (2019) with two external monitors attached (1xHDMI 4K + 1xUSB-C 4K). On one of the monitors (portrait mode, USB-C), the mouse cursors disappears (but "travels") when crossing a specific vertical "line" along the right edge, and on the right side of that "line", it is off by some pixels, making it hard to hit buttons.

The monitor works fine with my Windows computer. Anyone seen similar issues?

GIF: https://gfycat.com/joyousbackgiantschnauzer

 

[kiwi45]

Yes this is a known issue.

Mouse Cursor disappears and its position is incorrect in bottom area of display

Just another post to also confirm the same issue here. 2019 MBP 16" 5500M with an LG 27UL850 monitor rotated at 90°. The dead spots are the top + bottom right corners. No dead spots for default, when alt+clicking "Scaled", the only resolution that works apart from the default (1080 x 1920) is...

forums.macrumors.com

 

[nicktrull]

removed