Has anyone had any experience transmitting and receiving SysEx bulk dumps with a Yamaha S80 ?

I’m using that free SysEx Librarian from Snoize for Mac (that most likely most people are using). The Librarian works great receiving and transferring midi bulk data from all my midi keyboards and tone modules except for the S80.

Although, the S80 does successfully transmit data to the Librarian, the S80 does not want to receive data back from the computer. (Note: Yes, I do have the MIDI Sw>RcvBulk SysEx turned-ON on the S80 and MIDI channels matching).

PROBLEM: When attempting to transfer data back into the S80, the only active shown on the S80’s screen is the message <<>> but never ‘successfully’ finalizes the transfer.

If anyone has experienced successfully receiving SysEx data into an S80, please share your knowledge.

Thanks,