Client feeling sad per parent

Hello. I have a client who I have been doing CZ SMR training (UP SMR, Down 4-11 & 20-35) for around 8 weeks, and added these for the last 4 weeks, PZ training (AT with eyes open, UP 10-13, Down 7-9 & 20-35) and FZ squash (Down 2-12). Shes a teen with ASD and she says she's doing great, but parent reports lots of sadness for the past 4 weeks or so, I changed the FZ squash to Down 4-12 as of the last couple weeks. She came in due to temper outbursts, and those have largely stopped per client and parent, but parent advises that anger has been replaced by a lot of sadness which does not appear to be caused by situations at home or school. Suggestions on how to proceed in terms of adding or modifying protocols?