Robots meta tag content is now incorrect

When I turn on PublishPress Authors, the robots meta tag on this category archive page changes from what we want it to be:

<meta name='robots' content='noindex, follow' />

to this:

<meta name='robots' content='max-image-preview:large' />.

Turning your plugin off again brings back the desired content value. Why is this happening, and how can I recover the correct value?

The page I need help with: [log in to see the link]