illegal shiny latias

[Pearl8520]

so i have this latias i tranfered from emerald and when i put it in pkhex to clone it, it says invalid: encounter type PID mismatch. can someone explain or possibly help me?

380_-_Latias_-_A68108BB2C50.pk8

[Kaphotics]

The PID was hacked to make it shiny.

Generation 3 roamers from Emerald must have a Method 1 PID+IV correlation. The uploaded file does not have this correlation. Hence the PID-encountertype mismatch message.