This workaround worked for me too. Many thanks.
Copy your ISO image to /tmp or somewhere else not automatically destected by usb-creator.
Choose 'Other' and select that ISO
Select that image from the listing
Now it's not greyed out anymore and you can also go back to select your original image and it will be good.
This workaround worked for me too. Many thanks.
Copy your ISO image to /tmp or somewhere else not automatically destected by usb-creator.
Choose 'Other' and select that ISO
Select that image from the listing
Now it's not greyed out anymore and you can also go back to select your original image and it will be good.