You do not have permission to preview drafts

I can confirm this plugin is blocking previews on multisite !00%

Please a have look asap

Same problem here. 100% breaks preview functions.

We also lost “authentication” for every single site on our multisite network. It’s begging me to re-authenticate each one. Please fix!

I’ve had a client with the same problem.

The fix for me was to disable network activation of this plugin and activate on each site individually (luckily only two).

I can now preview.

This is not really an acceptable solution if you have dozens or hundreds of sites.

Broken on my network as well now, also kills the Theme Customizer. I have it network activated.