I recently decided to add a couple of the most common traditional characters but there seem to be a couple of bugs. What I did was enable both trad and simplified, then went and studied only the HSK1 list after resetting it to the beginning. The errors I've seen are:
1) I saw some words added from lists that were not HSK1, I think 1 was from my old queue.
2) I got the trad writing of 老师 as new which was what I expected. But then several reviews later I got the trad definition prompt, but the readiness said it was only 90% ready and I had studied it 8 months ago when I only started adding trad items yesterday. It seems like it is confusing the definition review for the trad and simplified versions?
Thanks for your help!