Yes. Low voltage differential won't work at all. Certain differential drives (non low voltage) require that they be set to single-ended mode in order to be backwards compatible.
If it's 80 pin SCA, then the adapter can be the reason it doesn't work correctly, although I haven't ever seen any issues with SCA drives because they're required to be backwards compatible.
If it's 80 pin SCA, then the adapter can be the reason it doesn't work correctly, although I haven't ever seen any issues with SCA drives because they're required to be backwards compatible.