modxlink button does not appear in tinymce, how to fix??#

Created new Revo 2.1.2 production environment, php 5.6.3, mysql 5.1.x, Linux, most current TinyMCE version.

Imported all system settings from development servers, noticed two things.

Many items are dated December 31, 1969 -- these were previously blank on the development server.

AND in TinyMCE the custom buttons display which always previously worked correctly will NOT display modxlink -- why??

modxlink IS specified in the custom button list and in the plugins list in the System settings.

Thank you, Tom

Did you ever manage to fix that?

The date is just the beginning of the unix epoch (timestamp = 0) which probably was imported instead of a MySQL NULL.

EDIT: For future reference - my issue was caused by using uncompressed mode (was developing on the site) and the old one was out of sync.