I've been trying to get these two plugins to work together for a while now but still unable to carry the custom taxonomy or post formats through to the tags blog.
The SWT plugin now works with both custom taxonomies and post formats, now that I've added my filter to the mu-plugins folder, but only when I use the wordpress new post entry page to save the post. When using the WooTumblog dashboard (which uses an ajax routine for publishing) the taxonomy or post formats are lost.
I have tried lowering the action hook priority in SWT as follows
add_action('save_post', 'sitewide_tags_post', 20, 2);
... and also elevated the the same action in WooTumblog, but still no change.
Does anyone have any suggestions from having previously worked with the save_post hook? I'd really like to get this issue sorted today.