cant seem to select my rune saber as my flying mount

[Coccobird76]

only my switft purple wind rider appears in the flying mount catagory while the rune saber only appears in the ground mount selection

any imput would be appreciated

View attachment 6744 2015-09-12 21.44.txt

 

[CodenameG]

because they're different mounts. ground mounts cannot be used as flying mounts.