Enable Mobile data -> Portable Wifi Thethering looping topic

Hi,

when I activate Wifi Portable Tethering and after that activate Mobile Data, my Wifi Portable Tethering starts to loop -> enable / disable. Alredy tried to delete "data/misc" and "data/misc/wlan" but no success. I'm on Android 4.4.2 verion.

Does anyone knows how to solve this problem (mobile is rooted :) )

THX