[issue]: Write protected USB flashdrive doesn't show volumes

[ch4ox]

Official FAQ

• I have checked the official FAQ.

Ventoy Version

1.1.10

What about latest release

Yes. I have tried the latest release, but the bug still exist.

Try alternative boot mode

Yes. I have tried them, but the bug still exist.

BIOS Mode

UEFI Mode

Partition Style

MBR

Disk Capacity

64GB

Disk Manufacturer

EZITSOL

Image file checksum (if applicable)

None

Image file download link (if applicable)

No response

What happened?

I use this USB flashdrive as it is one of the last available with a hardware switch to enable write protection:
https://www.amazon.com/-/en/dp/B0BFBDJXZW/

The drive was formatted with partition style MBR.
Partitions are as configured by Ventoy2Disk: One large exFAT partition and a small EFI partition.

Up until Ventoy v1.1.9 everything worked perfectly.
With Ventoy v1.1.10 the following bug was introduced:

• When attaching the drive in write mode, the data partition is assigned a drive letter. EFI partition is hidden as usual.
• When attaching the drive in write-protected mode, no volumes show up at all.
• I checked with diskpart: "list part" shows 2 partitions, but there's no visible volumes with "list vol".

This behavior is reproducible, I completely wiped the drive and the same thing happened again.

This does NOT happen when using GPT partition style -or- with any older Ventoy version, I checked different combinations already.

Any ideas what could've changed between v1.1.9 and v1.1.10 that could trigger something like that?
Thanks for any help!

[ch4ox]

Additionally, here are 2 screenshots that show the problem in write-protected mode. Sorry for German language!

Disk management shows partitions but doesn't offer a way to assign a drive letter:

DiskPart doesn't show volumes but lists partitions: