Pro-USB is limited to 24/352 due to software / hardware glitches according to Dustin in another post and I realized the Universal I2S has the same limitation. That said, when I switched to the Renderer (direct stream from Oladra) and played the same file (32bits floating), it still shows 24/352.. that puzzles me as the website clearly states it support 32bits. Maybe MSB process the file in its best possible way?