New Trainer here. Why does Pikalytics show 0 for all EVs when importing from Showdown?

https://preview.redd.it/bhrwuo6p3z4h1.png?width=1745&format=png&auto=webp&s=f63f3ad065019ac3f00aaf21606bb9dee6481339

I'm pretty sure there's something I don't get because I haven't been able to find anyone else having this issue.

If I assign EVs in Pikalystics and export to Showdown, it works fine.

Above left is the Showdown text I'm copy/pasting into Pikalytics. What's happening here?

Thanks!