Tesing mixes "in the car" - USB random issues

Hi Ardour family,

LIke we all do, performing the “Car Test” is a great way to test our mixes. I have some weird random issues with this. Some times the mixdown file plays just fine, other times I get this Playlist error. In such cases, I have to use the car’s file system to drill down to the actual track then it will play. (I have a 2016 Ford Escape with the Sync system).

All my mixes are either 44.1 or 48K. My car’s system will not do 32bit float, but will play 32bit non-float. I also just put the file on the root of the drive, not in any folder. Could this be the issue, or something else?

Thank you,
-Steve