How to fix - invalid: form argument is not allowed for this encounter?

[Jakestorme]

Encountering the following error. Not sure what to do. I got it in a trade, and they swear its legit. 

No big deal if I can fix it. Otherwise i'll just trash the mon.

Thanks!

[theSLAYER]

11 minutes ago, Jakestorme said:

Encountering the following error. Not sure what to do. I got it in a trade, and they swear its legit. 

No big deal if I can fix it. Otherwise i'll just trash the mon.

Thanks!

PKHeX isn't updated to deal with non-strawberry Alcremie that can Gigantamax.

Check back after the next update drops.

[Jakestorme]

5 hours ago, theSLAYER said:

PKHeX isn't updated to deal with non-strawberry Alcremie that can Gigantamax.

Check back after the next update drops.

Sounds good. Ty!