(Solved)Mediah bug quest

Bug Name:

Mediah bug quest​

Bug Description:

Route 1. old kingdom of mediah >>> Latusa fighter
impossible to complete the quest after observing the tree (letusa fighter) nothing happens.​

How to reproduce/proof:

I was following the missions of the mediah chain which are required for the black star. but at this point talking to the NPC Allan Serbin which is that he gives me the mission, he sends me to observe the "Latusa Fighter" which basically consists of observing a tree in front of this NPC. Search videos and guides etc. in which there are only two possible interactions with the tree. I already tried both and at no time I am given the quest as completed​