I have set up WiiM Pro Plus & connected the Optical Out using the TOSLINK optical cable to Optical In of Ruark Audio R410. When I set the Optical Out to 192 khz 24 bits, I cannot hear the test signal. I have confirmed with Ruark Audio that R410 does support 192 khz 24 bits. Pls let me know how to address the problem. If I set the Optical Out to 96 khz 24 bits, I can hear the test signal from R410. I reset the WiiM Pro Plus & configured it again, but the problem is not solved