[1.0.28] Dialog trigger "is character" not working (not sure if it ever did, though)

[MECR]

Hi all, I'm just working on a questline for my mod and with one of the quests, I planned that speaking with a specific character will have another outcome of the dialogue. I couldn't get it to work, but after trying several variants how to set up the dialogue I was quite sure I did it right. I then looked for a vanilla example and found one in Agnu's Dialogue Package - the Recruitment Dialogue is set to have different lines if Beep is speaking. So I set up my dialogue exactly as this one but it still wouldn't work. To make sure, I ran a short playthrough, ran to Mongrel, recruited Beep, ran to the Tower of Abuse and... no extra Dialogue option for Beep.

Would be great if this gets fixed since it would expand the possibilities for Quest Writing.