I like to make OS pretty in every installation, so after moving to MANJARO i copied and selected my fav cursor theme – win8.

BUT..after reboot i was quite dissapointed as i thought that Arch is rock solid base and almost bug free..LOL.. The default cursor theme appeared again either after reboot and logout, but when i moved mouse over Firefox, my selected theme appeared.. ROFL? 😀
I ASUUME THIS IS AN >OLD BUG< AND FOUND MANY WORKAROUNDS ON THE NET AND NONE HELPED TO FIX.
YEAH I’M SURE ITS A BUG BECAUSE ONLY FOOLS DESIRE THREE DIFFERENT CURSOR THEMES IN SINGLE OS SESSION.
So i did dig deeper and used Searchmonkey (GUI for grep) to look for string of DEFAULT themes name ‚Menda-Cursor‘. Then i changed theme and discovered that only one file did change, thats what causes this behavior.
However, manual edit of these files is WORKING but its >dirty hack< and is not good when one changes cursor theme often..

The discovery is:
THIS WAS CHANGED BY XFCE’s SETTINGS AND PERSISTENT:
file: /home/k/.config/xfce4/xfconf/xfce-perchannel-xml/xsettings.xml
line 34>    <property name=“CursorThemeName“ type=“string“ value=“Menda-Cursor“/>
USED BY FIREFOX AND SO ON..

AND THIS WASN’T CHANGED BY XFCE’s SETTINGS:
file: /home/k/.icons/default/index.theme
line 2>Inherits=Menda-Cursor
USED ON DESKTOP, XFCE..

ALSO I DID CHANGE DEFAULT XSERVER’s CURSOR USED BY GREETER (login):
file: /usr/share/icons/default/index.theme
[icon theme]
Inherits=Vanilla-DMZ-AA

JUST OVERWRITE NAME OF THEME TO:
[icon theme]
Inherits=win8

AND..[SOLVED] 😀

SOME OLD THREADS ABOUT CURSOR THEME BUGS IN XFCE:
https://forum.xfce.org/viewtopic.php?id=8425
https://bbs.archlinux.org/viewtopic.php?id=131065
http://ubuntuforums.org/showthread.php?t=1974227