1/ if you plugin android phone in 15.6 all the thumbnails where working out of the box
but NOT IN 15.9 (ON MAIN MACHINE YES ) BUT FROM DIRECT IN THE PHONE NO )
AND SOME VERSION BACK IT HAVE BEEN WORKING NOT ANYMORE
2/better stable codec or pakket in file managers for android is amust work on .
中文 
My beautiful Deepin-colored stock chart theme 
but NOT IN 15.9 (ON MAIN MACHINE YES ) BUT FROM DIRECT IN THE PHONE NO )
AND SOME VERSION BACK IT HAVE BEEN WORKING NOT ANYMORE
2/better stable codec or pakket in file managers for android is amust work on .
for the rest no problems