Error when attempting to import .PO translation file?

Hello,
So I’m working on getting my game translated into a handful of different languages, and I am learning how to use UE4s localization tools. I have exported the blank .PO files from unreal, and as a test, I tried importing them back for each languages translation. Issue is that any time I try to import the .PO, it waits for a few seconds, then a red X appears on the left of where it says “Import Translations”. The only file I can import, is the English .PO file, from the Localization dashboard, rather than from the edit-mode for the English translation.

EDIT: Just checked my project logs, and found this as well:

LogStats: Warning: MetaData mismatch. Did you assign a stat to two groups?

No clue what to do, might be a bug, but if not would love some help!

Hello,

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Thanks