she/her
Houston, TX
Seen February 1st, 2023
Posted February 1st, 2023
It's a glitch I have to deal with as well when I had my Scyther as a buddy, so you are not the only one nor it is Tyranitar the only Pokemon that has that glitch. Both the buddy system and the egg walking system are both a bit broken. It has improved a bit after this last major update (with Gen 2 being added), but they both still need work.
Check on your Journal just to be sure if you did get a candy. It usually appears on there.