umap2vsscan does not work, but umap2scan and umap works?

[Mrwizboy]

Running umap2vsscan with vid_pid_db.py gives

[INFO ] have been waiting long enough (over 5 secs.), disconnect

For all devices, even if they are supported or not. Running umap (not umap2) with -i shows supported devices, aswell as umap2scan after fixing some errors when running it in python3. So both umap and umap2scan shows supported devices (testing it against a windows 10 desktop). However, if I run umap2vsscan -s with the same vin:pid as one of the supported devices tested in umap2scan it just gives the same message as above. For some reason I keep having this issue where the host disconnects. This happens in umap2scan aswell but it still shows the device as supported:

[INFO ] [AudioDevice] Response: b'280355004d00410050003200200041007500640069006f0020004100640061007000740065007200'
[INFO ] have been waiting long enough (over 6 secs.), disconnect
[INFO ] [Max342xPhy] Disconnected device AudioDevice
[INFO ] [Max342xPhy] Disconnect called when already disconnected
[ALWAYS] Device is SUPPORTED

Can someone provide me insight to why umap2vsscan is not working, and why I constantly get this "have been waiting long enough" message? I have tried increasing the timeout but issue persists.

EDIT --

For example running umap2scan it shows that Keyboard is supported.
If I try to use the same vid:pid with umap2vsscan by doing:
umap2vsscan -P fd:/dev/ttyUSB0 -s 610b:4653

It does not respond, which makes sense since on the target computer it comes up as:
"UMAP2. PID0x4653" in Other Devices

While in umap2scan the keyboard shows up as
"USB Reciever" and recognized as a keyboard.

It seems that in umap2scan the devices are more properly configured, while umap2vsscan only uses vid:pin, causing the target to not recognize the usb device.

However, I would like to scan for certain devices/drivers such as this person does in his project:
https://github.com/ea/bosch_headunit_root

EDIT 2 ---
The problems seems to be with how VendorSpecificDevice are setup compared to specific classes such as USBKeyboardDevice