Mintstick fails to write USB as regular user

[James E. LaBarre]

In earlier releases Mintstick was able to create bootable USB flash drives as a regular user. When it needed elevated privileges it would prompt for a password at the appropriate point. In v1.3.x it no longer prompts for a password. Instead, the dialogue will wobble back & forth, a couple of windows will pop up and go away within a fraction of a second (too fast to see what they say), and an "Authentication Error" message comes up.

Most recently encountered in:

Linux Mint 18.2
Mintstick 1.3.2

Expected behavior: starting Mintstick GUI, selecting image and USB destination should prompt for a password in order to write USB, and the proceed to write the image to the USB

What happens: running Mintstick GUI, select ISO image and USB destination, clicking on write eventually results in "Authentication Error" because it either fails to ask for credentials or closes the dialogue requesting them before they can be entered. The dialogues that pop up close to fast to see any of what they say.

[James E. LaBarre (jamesl-bestweb)]

This bug continues on. Currently running Mint 18.3, Mintstick v1.3.5

At least now it gives an error message:

=======================================================
An error occurred while talking to the udisks service.
=======================================================

which probably relates to other bugs listed here. If I find something before someone else does, I'll update it here.