Using MOTU 828 with MIDIMAN MIDISport 2x2. Anyone have any ideas?

No external MIDI response in standalone mode:

--*-- Upgraded to 3.12.2322

--*-- Sound outputs fine when clicking on on-screen keyboard

--*-- MIDI port connected to GSPort #1, sound loaded in Port1, Channel 1

--*-- Port indicators are dark green, status indicator not flashing "external midi"

--*-- Exact same MIDI IN port drives Native Instruments FM7 in standalone mode with exact same controller on same MIDI channel -- problem is not external configuration.

--*-- Reboot/restart doesn't help. Problem may be new to the 3.12 version upgrade.

--*-- Use of alternate MIDI interface doesn't help.

--*-- nemdiag.log log file (see below) seems to indicate "MIDI Port Not Opened" for both connecting interfaces (trying to connect one to Port #1 and the alternate one to Port #3).

Port Linkage: P0: 0x1 P1: 0x2 P2: 0x4 P3: 0x8 P4: 0x10 P5: 0x20 P6: 0x40 P7: 0x80
After Stopping midi In ports:
# port in Use = 2:
PortAccessLevel = User
byStatus = 1 1 0 0 0 0 0 0
Ids = 0 2 0 0 0 0 0 0
szNames =
In-A USB MidiSport 2x2
Roland Serial MIDI Input
byRoute = 0 ff 1 ff ff ff ff ff
Port Linkage: P0: 0x1 P1: 0x2 P2: 0x4 P3: 0x8 P4: 0x10 P5: 0x20 P6: 0x40 P7: 0x80
Validating the Port configuration before we start the midi routing:
# port in Use = 2:
PortAccessLevel = User
byStatus = 1 1 0 0 0 0 0 0
Ids = 0 2 0 0 0 0 0 0
szNames =
In-A USB MidiSport 2x2
Roland Serial MIDI Input
byRoute = 0 ff 1 ff ff ff ff ff
Port Linkage: P0: 0x1 P1: 0x2 P2: 0x4 P3: 0x8 P4: 0x10 P5: 0x20 P6: 0x40 P7: 0x80
midiLoopStart(): MidiOut GigaOut: Port 1 / Control opend with return code = 0
midiLoopStart(): MidiOut GigaOut: Port 2 opend with return code = 0
midiLoopStart(): MidiOut GigaOut: Port 3 opend with return code = 0
midiLoopStart(): MidiOut GigaOut: Port 4 opend with return code = 0
MidiInLoopStart() There are 2 MidiIns, and 4 MidiOuts
MidiInLoopStart(): MidiInStatus[0] = 1, port not opened.
MidiInLoopStart(): MidiInStatus[1] = 1, port not opened.
After starting midi In ports:
# port in Use = 2:
PortAccessLevel = User
byStatus = 1 1 0 0 0 0 0 0
Ids = 0 2 0 0 0 0 0 0
szNames =
In-A USB MidiSport 2x2
Roland Serial MIDI Input
byRoute = 0 ff 1 ff ff ff ff ff
Port Linkage: P0: 0x1 P1: 0x2 P2: 0x4 P3: 0x8 P4: 0x10 P5: 0x20 P6: 0x40 P7: 0x80