PKHeX won't accept save file after the DLC

[Irina]

Apparently the file size is too large now.

[theSLAYER]

Gee, I wonder why.

[Madhatter44]

im having the same issue

[Leoj]

Any Expected time frame on when it will be updated?

[Tirilion]

I got the same issue on shield and sword

[theSLAYER]

Oh look, everyone is asking for an update for something that just came out.

Just wait patiently. It is out when it is out.