Plugin is taking 150×150 thumbnail and stretching it

Hello, I’m trying to get rid of Gravatar and use this plugin to display my author avatars. But on the author pages (example: https://bit.ly/34j15bW) it’s taking the 150×150 thumbnail and stretching it instead of using the original or resized version. I’m inserting the full sized image, but it’s only grabbing the thumb.

Thanks!

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