I can confirm thisalso. filters on some occasions dont respond until you open the editor and touch the knobs/slider (Ive also seen this with eq). This one is one of the dealbreakers for me since you cannot rely on a mixdown before you check every friggin track filter secttion if you used it.
also I guess this one with the dissapearing envelopesis not so new. Here is a German report from 2012 
This is a disaster.