whhich version of axoloti are you using?
1.08 has got some issues with loading stuff from sd-card.... which I know have been fixed for next release... Go back to 1.06 and it will work.
As I understand it, Axoloti 1.08 has got the feature to copy evrything used in a patch to the trackfolder(created automatically) on the sd-card. But this works ONLY for the table/load objects WITH filename. IF you use the string/c module it wont work, it wont copy the file to the sd-card and therefor it wont play. It ONLY copíes file to sd-card when using the table/load with filename included.
So I think there was a void that hadn't been considered by johannes. But it will probably work in next version. Johannes have implemented "fallback to sd-card" feature. That means if it can not locate the file from harddisc, it will automatically fall back and use sd-card filepath instead. If I understand this correct, it means that Axo will use sd-card as it is now in version 1.06.
But need to get the version when released and test how it works.