problem mount usb stick

[sewb]

im trying to get som stuff of from my phone to a usb stick, but as soon as i put it in my phone, my sdcard disappears and instead is some kind of duplicate of my usb stick. as u can see on the picture below, sdcard and usb stick is the same size, and the content is exacly the also. as soon as i unmount my usb stick, my sdcard shows me 0kb size. after a reboot is my sdcard back as usual.. but ibstill cant use sdcard and usb stick at the same time..

got an rooted z3 with 6.0.1

http://uploads.tapatalk-cdn.com/20160608/7aaec63bdbb9ee74e5ebd5881fd17dba.jpg


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