This can be very annoying as it can lead to clicking on things you didn't intend to in any app.
Steps to reproduce on Windows
Open a new world
Alt-tab to another program (or use windows key to open the start menu)
Minecraft is no longer in focus
As soon as auto pause kicks in, cursor will be moved to dead center on the screen
Steps to reproduce on OS X
Disable auto-pause using F3+P
Stand in a Nether portal
Switch to another fullscreen app
As soon as the Nether loads, the cursor will suddenly be in the center of the screen.
(This ticket was originally reported by @unknown.)
Comments 19
Also affects OS X when Mission Control is activated while loading a world. Moving the cursor is not possible until Mission Control is deactivated.
Affects 16w05b. Please add the following steps to reproduce on OS X to the description:
Disable auto-pause using F3+P
Stand in a Nether portal
Switch to another fullscreen app
As soon as the Nether loads, the cursor will suddenly be in the center of the screen.
Confirmed in Windows 10.