[BUG]: Pi Imager does not detect USB 3.2 Gen1 usb key while PI OS does

[AlainF-ing]

What happened?

I just purchased SanDisk USB 3.2 gen1 64Gb key.
I use pi5 trixie latest update every thing work fine with this new key.
If I use Pi imager program (1.9.4) it does not recognize the USB key.
Even if I dismount the key (no device recognized)
My goal is to setup Trixie on USB 3.2 using Net Boot directly, but this is not working.
I have sucessfully setup using Net Boot
1. micro SD uing usb adapter
2. SSD disk using USB adapter
Now this USB 3.2 key give me problem.
Any ideas how to fix this ?

Version

1.9.4

What host operating system were you using?

Other Linux environment

Host OS Version

Linux Pi58GTrix 6.12.47+rpt-rpi-2712 #1 SMP PREEMPT Debian 1:6.12.47-1+rpt1 (2025-09-16) aarch64 GNU/Linux

Selected OS

Raspberry Pi Os Trixie 64 bits

Which Raspberry Pi Device are you using?

Raspberry Pi 5, 500, and Compute Modules 5

What kind of storage device are you using?

USB Pen Drive

OS Customisation

• Yes, I was using OS Customisation when the bug occurred.

Relevant log output

lsblk
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS
loop0    7:0    0     2G  0 loop 
sda      8:0    0 223.6G  0 disk 
├─sda1   8:1    0   512M  0 part /boot/firmware
└─sda2   8:2    0 223.1G  0 part /
sdb      8:16   1  57.7G  0 disk 
└─sdb1   8:17   1  57.7G  0 part /media/alain/CL_1
zram0  254:0    0     2G  0 disk [SWAP]
==============================================

lsusb -v -s 1:5

Bus 001 Device 005: ID 0781:5581 SanDisk Corp. Ultra
Couldn't open device, some information will be missing
Negotiated speed: High Speed (480Mbps)
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.10
  bDeviceClass            0 [unknown]
  bDeviceSubClass         0 [unknown]
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  idVendor           0x0781 SanDisk Corp.
  idProduct          0x5581 Ultra
  bcdDevice            1.00
  iManufacturer           1  USB
  iProduct                2  SanDisk 3.2Gen1
  iSerial                 3 0901888ccc186d3f0a1ff1d89d2b461ed7cbc4510a280c774e7dc7f8e828f95b9bc60000000000000000000031c11d97ff9d58208155810742b2c7d8
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x0020
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              224mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass         8 Mass Storage
      bInterfaceSubClass      6 SCSI
      bInterfaceProtocol     80 Bulk-Only
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
      bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x02  EP 2 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0