I did have the same problem as you (no sound with Toneport UX1) Had to change the settings to 48000hz 16-bit like you all did (but figured out myself, took about 3 hours to fix this lol).
Unfortunatly like deathdealer said my device always been supporting 24-bit before and now its not even trying to work..
You guys can except another random problem on DAWs or any other software trying to use 24bit raw audio.
Even audacity is failing on me, giving random audio port error. Everything works perfectly when my pod is unplugged. But once plugged audacity doesnt even want. The problem is already reported to them but the problem is obv on the line 6 drivers which needs to be updated.
Please fix this soon guys im in love with my toneport, I cant live without it. I'm happy this is already reported hehe.