[BUG] Output data is wrong when MT4 messages break up in the middle of a message. part.2

[sat-okada]

Describe the bug
MT4 messages consist of two words, but inputting one word at a time may result in incorrect output results.
Similar issue as #457.

To Reproduce

1. Install zoa_odd.zip on the ProtoZOA.
2. Start the console and monitor the ProtoZOA.
3. Press TP6

Then receive the following messages:

Expected behavior
The following messages should be received following Index 5:
0x40954500 0x80000006
0x40964600 0x80000007

Installer Name or Version
・Windows.MIDI.Services.In-Box.Service.-.1.0.1-preview.7.24305.1438-x64.exe
・Windows.MIDI.Services.Tools.and.SDKs.1.0.1-preview.7.24305.1438-x64.exe
・USB MIDI 2.0 class driver (USBMIDI2_10.0.1.7.x64.zip)

Desktop (please complete the following information):
・OS: Windows 11 Pro Insider Preview Build 27758.rs_prerelease.241122-1512

Device information, if this is with an external MIDI device:
ProtoZOA

Application Information
midi.exe console app.

Additional context
Attached firmware is same as #457.

[sat-okada]

I checked the data on the USB for this case.

UMPpacket31 is the same size as UMPpacket30, missing 4 words.

[Psychlist1972]

inputting one word at a time may result in incorrect output results.

Can you explain this further, please? We only input and output complete UMP messages, and expect MIDI 2.0 devices to do the same. A partial UMP message is invalid data.

[sat-okada]

The purpose of this test is to check the processing of UMP messages across multiple USB packets in comment #312.