Well it's not official ones. All of these characters animations are from LSH Ringman game. Slapped Taichi's face over one of Masuo's face for immersion. You must have notice sloppy work done with Taichi in a few animations.
Also I recommend. Deleting the game data (not save) and extracting new one as old npc mods no longer work.
1.This is working for me so if you can tell me if you did something specific that would be great.
2.This one also never happened for me. Yes, I did tried interacting with tablet like you said and it's working as it should.
Since multiple people mentioned it there might be something I'm missing to reproduce it. Can you share your save file here? Just paste all values from save file in a comment.