Just a problem when using the function "move mouse cursor to different monitor"!

I use four monitors with 2*2 arrangement,
3 4
1 2
the problem occurred when move mouse cursor from 2 to 3(or 3 to 2), from 1 to 4(or 4 to 1).

for example, when mouse cursor is in #2 monitor, using key combination to invoke the function, select #3 monitor, then the mouse cursor goes to the middle of #3 monitor, but when I move the mouse, the cursor suddenlly jumped to the left-top corner of #2 monitor.

1. the problem seems only occurred between diagonal monitors.
2. when disable one monitor, the problem is gone even with diagonal monitor.
3. when arrange the monitor like
3 4
1
2
it also has no problem when move mouse cursor between #1 and $4.

I attached the debug and log files

there is another odd thing, each time the DisplayFusion loaded, when click the arrow in Taskbar "show hidden icons", the content will jumps to the left-up corner. but after this, click the arrow again, it shows normall.

refer to this post
https://www.displayfusion.com/Discussions/View/mouse-pointer-snagging-when-moving-between-monitors/?ID=1227883e-7807-4a83-9f5d-32cff778ab03

I tried to change MouseCornerClipLength from 6 to 0 in registry(there are several place, i modified all), the problem of "mouse jumping" didn't occur.

but the UP ARROW panel "show hidden icons" jumping is still happened.

And I found when setting #1 as primary monitor, there is no "show hidden icons" panel jumping. It seems there are some magic with the upper-left corner of #2 monitor, which is actually the middle of the whole 4 screen.

I click the arrow in Monitor #2， which is set as primary monitor, it will jump to the left-up corner of #2 monitor.

As described above, I changed the primary monitor as #1, it seems the panel jumping is gone, but actually sometimes it still happens, the panel will jumps to the left-up corner of monitor #1 when clicking the arrow in the tray in Monitor #1.

By the way, I didn't enable the DisplayFusion taskbar, I use win8 taskbar instead, which is set as display taskbar on all monitors.

yes, I uninstall the 7.3.4 and install the 8.0 beta6. It still happens.

Not using DF taskbar, whether using multi-moniotr taskbar(in Windows Taskbar property) or not, at the first time displayfusion loaded(restart system or exit DF and launch again), don't operate mouse, just click the up-arrow, the hidden tray still move to the upper-left corner of the primary monitor.

Disable multi-monitor taskbar in in Windows Taskbar property, and enable DisplayFusion taskbar, It seems no problem, whether click the up-arrow on the primary monitor or on other monitor.

The problem seems still there in DF8.0