"VBoxManage list usbhost" only lists USB devices before launching VBox GUI

[virt25]

I'm running Windows 10 on Virtual Box (Kubuntu 20.04 as host) and I'm having a hard time trying to detect my USB on Windows. I'm using VB 6.1.12, installed Extension Pack and Guest Additions (on Windows).

The thing is, when I go to Devices > USB, not a single USB is listed in there. I'm reading this one topic (viewtopic.php?f=7&t=87206) which is quite similar to what (I think) it happens to me. My user belongs to 'vboxusers' group (I already logged out to make sure changes apply).

Trying to run

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sudo VBoxManage list usbhost

works good, but running

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VBoxManage list usbhost

only works sometimes. More specifically, it only works when I reboot my computer (or logout and in my session) and haven't started VirtualBox GUI. As soon as I open it (that is VirtualBox GUI), whenever I run 'VBoxManage list usbhost' I get

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Host USB Devices:

<none>

I don't know what could be causing this, it seems like VirtualBox is removing my user from 'vboxusers' group but when I restart I'm added back again? I'd appreciate some help. Thanks.

[scottgus1]

Having read the Linux Hosts forums for a while, though not skilled enough to actually help fix things that much, I would say this sort of thing has not shown much. Virtualbox itself does not have settings that cause this behavior.

Sudo vs not-sudo differences lead me to suspect there is some permissions problem in the Linux host OS with the regular account.

[virt25]

I "solved" this. In case anyone is having the same issue, just restart your computer and don't open VirtualBox GUI. Just launch it from the terminal with

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VBoxManage startvm "W10"

Replace W10 with the name of your vm.

It's just a workaround but I couldn't figure out why GUI is messing with permissions.