Thanks,
it was quite easy to understand the problem and fix it. And this also helps me to find out a "legacy" potential issue that now is going to be fixed...
Just open ReDJ system plugin, go to line 1311, you will find:
// Only site pages that are html docs
if ( JFactory::getDocument()->getType() !== 'html' ) return;
This is a very legacy check that exists (I think) since the first ReDJ release. And it is a wrong check for two reasons:
1) It sets the html type as described in the joomgallery issue page, and this is wrong;
2) Now ReDJ should be able to redirect ANY page type, not only html type.
So just comment or delete this single line of code. I will remove in the next version.
On my test site this was enough to fix the issue. Just let me know if this solves in your case too.
Kind regards,
Luigi