Allo Boss v. 1.2 - 16 bit displayed on Volumio but 24 bit

I have a Raspberry Pi4 with an All Boss v 1.2 connected. Music is streamed from JRiver media Center 26 (latest version). ‘Native’ sound - no conversion in JRiver settings.

When I stream 24 bit music (displayed on JRiver), on Volumion I get 16 bit - which is not correct.

Thanks for sorting me out with this problem.

Best regards