Error in the instan article box.

Same here. This happened right after the last update.

On line 21 of meta-box-template.php we can read:
<?php if ( ! $shoud_publish_post ) : ?>
but this variable is not even set anywhere in the plugin. If you var_dump it you’ll get NULL

Same issue . Is the only fix an update to the plugin ?

Having the exact same issue

Hi, same issue also here, the rules are ok but I get the message.

Is there anybody out there?

(Yes, a Pink Floyd reference)