Ligatures Not working

Good evening,
I’m facing an issue when I created ligatures for an Arabic typeface, the problem is all the discretionary ligatures working accept these, as it appears in attache.

I need the kaf to connect with the lam_lef form.

Have you updated the liga and dlig feature and does it contain substitutions for the glyphs in question?

This is my file,

Can you please update to the latest version? There seems to be be a bug in openType code generator in the version you are using. With the new version, hit the update button next to the dlig feature in the feature list.