Not sure if I should put it here, cause it's not a real bug (yet) but I tested the WPPA plugin (v4.8.4) with the upcoming WP 3.5 release (now RC) and it seems that inserting wppa codes in a posting doesn't work. Clicking on the icon in the editor gives the normal pop-up to choose what you want, but nothing happens when clicking "insert gallery". Also not when selecting to use the new style.
Just putting in the codes manualy (like %%wppa%%) directly into the post does work however..
Just to let you know in case everyone starts complaining when they update to WP 3.5 (expected in 2 weeks) and encounter the same ;)