Password field not shown until alternative user selected

[LinuxOnTheDesktop]

 * slick-greeter version (slick-greeter --version) 1.3.2
 * Distribution - (Mint 17.2, Arch, Fedora 25, etc...) Mint 19.3
 * Graphics hardware *and* driver used: Intel onboard; Mesa
 * 32 or 64 bit: 64

Issue

Upon logging on, the names of my two user accounts were displayed but the password field was not - as it usually is - visible for my main user. Screenshot:

Steps to reproduce

The problem has not occured before; it may not recur again or at least not regularly. But, what I did was: fiddle around with kernels a bit (remove one, install one); reboot. The system was fine once I managed to log in, having got the password field to appear. I achieved the latter by clicking on the name of my second account, which displayed the password field for that account, and then clicking on the name of my first account, whereupon the password field for that account appeared. Simply - initially - clicking the name of the first user account did nothing.

Expected behaviour

The password field should appear automatically - of, if the system for some reason does not know which account I wish to use, then clicking on any of the available account names should work (and I am pretty sure that, this time, it did not).

Other information

Cf. #99.

[LinuxOnTheDesktop]

Just now I experienced the problem again. In case it is relevant, the problem occured (1) when I rebooted the computer having not rebooted it for some days, (2) after a kernel upgrade.

[alexmalykh]

Same problem for me.

 * slick-greeter version: 1.5.1
 * Distribution: Fedora 33 (x86_64)
 * Graphics hardware *and* driver used: Radeon RX 560; Mesa/amdgpu

[LinuxOnTheDesktop]

This problem persists into Mint 20.2. I hope that Mint 20.3 will remove this papercut.

[LinuxOnTheDesktop]

The problem persists on Mint 21.1.

[LinuxOnTheDesktop]

The problem reoccurred just now for me - so, @clefebvre, if you want relevant logs, now is the time to tell me what you need.

[mackron]

Has there been any movement on this? This is still affecting me, on multiple different machines, and has been the case for at least the last 5 years. Indeed, I've never not encountered this bug. Definitely happening on Mint and Arch, though I highly doubt the distro is very relevant to this particular issue. Only happens with more than one user, and only happens for the bottom user in the list. So if the last sign in was from the top user, it'll work fine, but if it was from the bottom user, no text box on next boot, exactly like the screenshot in the original post. More than happy to pass along any logs or additional details to help address this.