First of all, usb redirection (flash drives, PIN Pads, scanners) is working fine:

From a physical Windows computer to my AVD Session Hosts, so I know my AVD Host Pool RDP settings are correct.
From my Dell thin clients but when using a Citrix broker.

Also, mapping (not USB redirection) of flash drives does work, but there is a system folder structure shown to users which will cause confusion (I myself deleted the folders that showed up then that rendered the flash drive useless until I formatted it and the folder structure (that's supposed to be hidden) came back and was visible in the AVD session).

My Specs:
Dell Optiplex 3000

Thin OS 10 2505

BIOS 1.29.2

Microsoft AVD Package 3.1.121

32 GB Flash Drive formatted as FAT32

This is what I've tried so far. You can see the only successful thing was disk mapping, but again, that has the issues where it shows a folder structure that's supposed to be hidden.

Thin OS	BIOS	Disk Mapping	USB Redirection	USB Redirection Exclude Disks	AVD Forced Redirection Configuration	Device Security Allow	Comments
9.X 2505	1.11.0	Enabled	Disabled	n/a	n/a	not configured	Mapped drive shows up, but has system folder structure visible.
10.X 2505	1.11.0	Disabled	Enabled	Off - not excluded	n/a	not configured	No disks show up
10.X 2505	1.11.0	Enabled	Enabled	Off - not excluded	n/a	not configured	No disks show up
10.X 2505	1.11.0	Enabled	Enabled	Off - not excluded	0951:16d5-08 (Kingston DT Elite G2)	not configured	No disks show up
10.X 2505	1.11.0	Disabled	Enabled	Off - not excluded	0951:16d5-08 (Kingston DT Elite G2)	not configured	No disks show up
10.X 2505	1.29.2	Disabled	Enabled	Off - not excluded	0951:16d5-08 (Kingston DT Elite G2)	not configured	No disks show up
10.X 2505	1.29.2	Disabled	Enabled	Off - not excluded	0951:16d5-08 (Kingston DT Elite G2)	Vendor and Product ID 0x095116d5 Class 0x08	No disks show up
10.X 2505	1.29.2	Disabled	Enabled	Off - not excluded	not configured	Vendor and Product ID 0x095116d5 Class 0x08	No disks show up
10.X 2505	1.29.2	Enabled	Enabled	Off - not excluded	not configured	Vendor and Product ID 0x095116d5 Class 0x08	No disks show up
10.X 2505	1.29.2	Enabled	Enabled	On - Excluded	not configured	Vendor and Product ID 0x095116d5 Class 0x08	Mapped drive shows up, but has system folder structure visible.

Screenshots of flashdrive redirecting as expected from a physical workstation (aka fat client):

Screenshots of the flashdrive being mapped via a thin client (Oh yeah, I can't just click into the flash drive and drop a file in it, I have to first go into the da0s1 folder and THEN I can copy files into the flash drive):

These are my Host Pool RDP Properties:

I don't really want to troubleshoot the issues with mapping, I just want to get USB redirection to work, because I need it to work to pass scanners and PIN Pads to my AVD session host.

Any help is appreciated, thanks!

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