Sounds like just bad RNG
Each roll it would have a 1/100 chance, and if the roll keeps failing, then could go for a while. It should eventually happen.
If you feel though that it is a bug, you need to report it in-game so it can submit the right information to be looked at by the right team (since this forum is for the website, not much the publication team can do about a game issue).
Can I turn in a paper without citing all sources?
"No."[1]
1. William Shakespeare,
Hamlet
, Act III, Scene 1, line 96.
11-Jun-2023 16:43:40