discretionary ligatures bug ?

I've created a glyph for "fff". The code in "font info" is
DLIG > sub f f f by f_f_f;

1. isn't possible to preview standard ligatures + discretionary ligatures at the same time in the preview text mode?

2. when I'm in the preview text mode with dlig activated, I click 3 times of my "f" and I have as output my "f_f_f" glyph + another single f = 4*f (1 "f" more).

3. I can't see my f_f_f glyph on Photoshop nor Indesign; of course I've not forgotten to select the proper opentype feature in both softwares' character panels, but nothing... my f_f_f isn't taken in account

to 1)
This is not possible a t the moment. You can select one feature and input the other with the cmd-F command.
to 2)
Will check this. Seems to be a bug.
to 3)
can you send me the hole feature and/or the .glyphs file?

features = (
{
name = liga;
substitution = (
{
source = "f i";
target = fi;
},
{
source = "f l";
target = fl;
},
{
source = "f f";
target = "f_f";
},
);
},
{
name = dlig;
substitution = (
{
source = "f f f";
target = "f_f_f";
},
);
},
);

This an issue with the feature order. If you drag the dlig entry in the font info > features on top of the liga feature and export the font again, it should work.

I will check if the dlig feature should be always before of the liga feature.

Ok thanks!