Issue with Ogerpon Heartflame in PKHeX

[June just got trolled]

So, today I was just creating a new comp. VGC team with PKHeX when I realized something
Ogerpon Heartflame has got some kind of problem. I firstly saw the issue and tried to arrange it manually, it is a common one:
INVALID - UNABLE TO MATCH AN ENCOUNTER FROM ORIGIN GAME.
After a while and after trying several things I still wasn't able to fix it.
Then I moved on and tried something different. I searched for a legal Ogerpon pk9 file to use as reference. I used this Ogerpon from Eviovulpix: 

Once I opened it in PKHeX I got shocked to see that they had almost no differences (except for country and trainer differences)...
After some more work, I finally realized that Ogerpon Heartflame is the issue. I tried to put the Heartflame Mask and changed everything I had to change in Eviovulpix's Ogerpon for it to be a Heartflame legal Ogerpon, and the same error from the start popped on on theirs.

Can anyone help me solve this problem if you can solve it or report it to get fixed in the case that you can't solve it?
 

[foohyfooh]

My assumption as to why you are getting this error is because you are editing the IVs to be 31 rather than hyper training them since that change allows me to reproduce the error. I was able to change the Ogerpon to be competitive without any problems.

1017-02 - Ogerpon - CF669AECD785.pk9

[June just got trolled]

oh wow, thanks!
and just for curiosity, how do you know you are hyper training the IVs or not? I have never heard of that option before in PKHeX

[Kaphotics]

Options ~> About PKHeX ~> Shortcuts

[June just got trolled]

thank you ^^

[Eviovulpix]

Have you got any news? Cause I'used my file to change the mask and was everything ok, you must change the form and the item