Sorry haven't played it yet. Is this encounter bugged or not? Someone said the tadpole option just said Wisdom not Illithid Wisdom. There is no problem to me with having tempting situations come up for using the tadpole. There is a problem not telling me I'm using it.
I can't remember what the tags say but the subtitle text definitely implies the tadpole is going to be involved. I assume the spoken part would be the same but I play with sound off so not completely sure.