Send private message to author doesn't prefill author

Same here.

Hi there;

I solved this issue on my project. I was working on local with PHP 5.6 and switching to PHP^7.1 solved the issue.

I guess some of the code won't work with previous versions of PHP and it won't fail also, leaving you with a silent error.

Maybe the project maintainer should update the docs to reflect the minimum PHP version required.

I used PHP v.7.1.14 and I have the same issue

I think what found a bug when link generated, for recipient now used entity id, but we need use entity owner id

Shefarik - Thanks for your patch. I have also applied the fix to comments, which would had the same bug incorporated into them.

Maybe the project maintainer should update the docs to reflect the minimum PHP version required.

The module is compatible with PHP 5.6, the minimum requirement for Drupal 8. It was a bug in the code, not a PHP version conflict. The diagnosis of upgrading to PHP 7 was incorrect.