B.D.

I wish I could flash in an empty slot for recreating the same situation so that I could show you but I can't because in my Octagon Supreme the SD card where the extra slot go is buggy and doesn't work and also my other three main slots are already taken by other images.
If I find the time in the next days I will make a backup of this image so that I don't have to do it all over again and reflash. Not tonight though.

Never mind mate, the problem is solved.   
I thank you for that code but I'm not a coder and would understand little of it.

Well, obviously, if you'd labelled them as such.

I didn't label anything, it is a fresh install of the image and I'm doing everything from scratch to avoid old backups that carry outdated plugins in the new image causing issues.
That stick has it's own label but it's USB-32GB and has nothing to do with the HDD label assigned by the image.

An USB device will never be mounted as hdd, unless it is labeled as such.

Well, it did in my case, I actually had both the internal SSD and the external USB Stick both labelled as HDD, don't ask me how it can be possible. I wish I did some screenshot before so that I could show you.
Anyway I solved removing the label and assignin the right one (USB) to the stick.
Thank you all for the answers.

ps. I will take a look at that "e2label", thank you.

Never mind, I have found what I was looking for in the system plugins.
A mod can delete this thread if you want.