Hi Jason,
that is what my friend is experiecing:
* LP cutoff change only audible after 12 o'clock position
* BP no change of sound when using cuttoff or Env. Depth,
* HP very harsh
* sound in general very harsh and not so pleasing, soft as before
The easiest for me would be to install him an older firmware (he bought about a year ago and has not updated since). If the module is now more complex in handling because of more features this might be already the topic here.
Thanks in advance,
Sebasktian