The TASCAM Sonicview series has an updated released firmware, version 1.6.0, and SB-16D has an updated released firmware, version 1.20.
To acquire the V1.6.0 firmware update for the TASCAM Sonicview 16/24 Digital Mixing Consoles, and V 1.6.0 software update for the TASCAM Sonicview Control app, and V1.20 firmware update for the SB-16D, and V1.1.1 software update for the TASCAM IO CONTROL app, visit the following URLs:
TASCAM Sonicview 16 https://tascam.jp/int/product/sonicview_16/support
TASCAM Sonicview 24 https://tascam.jp/int/product/sonicview_24/support
SB-16D https://tascam.jp/int/product/sb-16d/support