i actually got bugs too with save ability handle,
it shows me imported icon list at the bottom down of the windows when i click the Red ability text (images and textures too)
because of this, i decided it was actually a Blizzard mistake, where they put Save Texture or Save icon handle, instead of Save ability handle's function...
i used custom script instead...because i got problems with it.
try using custom scripts, it give you a lot of freedom