Quest Issue: Can't initiate quest dialogues

[Nilsun]

Hi, I just re-installed p99 today after not playing for quite a while, and I have tried starting two different characters and neither of them have been able to further quest dialogue past hailing the NPC.

I have the NPC selected, I am standing very close to it, and no matter what I type, even if I just use the [highlighted] word, the NPC just turns to me and doesn't give any follow-up dialogue.

I have tried to restart my client twice and I am honestly stumped as I have not found any info on a similar problem when googling.
I am at a genuine loss as I have already played the game before and I am trying to initiate dialogue the same way I successfully did when I used to play, but now I get no follow-ups.
Any help or ideas on what might be wrong would be appreciated.