Sorry for being a bit late but did you compile data after editing the PBS? As for encounter rates, it's based on the order they're listed. It goes: 20%, 20%, 10%, 10%, 10%, 10%, 5%, 5%, 4%, 4%, 1%, 1%.
For example:
You can refer to this for more information https://essentialsdocs.fandom.com/wiki/Wild_encounters?oldid=174