Flash drive mounting as Ubuntu boot

[IriDium]

This is probably not an XBian issue but it occurs on my CB on latest XBian.

I'm using a flash drive that was previously used as a USB boot for Ubuntu Mate. It has been formatted as ext4 and movies copied to it.

If I insert it when XBian is up it shows up as:
/dev/sdb 1.6G 1.6G 0 100% /media/GlowFish
and I can play the movies as if everything is normal.

However, If I leave it in the USB and reboot. it shows up as
/dev/sdb 1.6G 1.6G 0 100% /media/Ubuntu-MATE 16.04 LTS i386
and all I see is /boot in the file structure.

To get back to GlowFish, I need to unmount and then remount again.

This doesn't occur under Ubuntu 14.04 where I can leave the Flash drive in during a reboot.

I've tried reformatting to even FAT and reset the partition table to msdos but it still occurs.

Is there anyway to eliminate this?

[Nachteule]

Just a shot into blue

There is no partition table on this flash drive.
Can you add partition table (only one partition) and format it?

[IriDium]

(Solved)
Decided to format it via OSX and it seems to have solved the problem. Guess it was something to do with GParted not formatting correctly.