Bad news. I had about 120 or so flashcards built up with relevent vocabulary that I was studying. I tried to sync my phone the other day (which always worked previously) and it added about another 499 words to my list! Furthermore, all of the vocabulary I had marked as "studied" disappeared. So, basically, my flashcards do not work any more either.... at least on my phone. It appears that my vocabulary is still in-place on the website. Unfortunately, I cannot find any option to delete the vocabulary on the chinesepod phone app....
The android app needs a lot of work.