Failed to load steam/config/loginusers.vdf

[Skripterr]

In my case, it is due to change in loginusers.vdf file, after steam shutdown it changes, tab character changes, some data is added/deleted. Is there a fix for this?
Before

"users"
{
	"steamid"
	{
		"AccountName" "login"
		{ "PersonaName" "nickname"
		"RememberPassword" "1"
		"mostrecent" "0"
		"Timestamp" "timestamp"
		"WantsOfflineMode" "0"
		"SkipOfflineModeWarning" ""
	}
}

After

"users"
{
	"steamid"
	{
		"AccountName" "login"
		"PersonaName" "nickname"
		"RememberPassword" "1"
		"WantsOfflineMode" "0"
		"SkipOfflineModeWarning" "0"
		"AllowAutoLogin" "1"
		"MostRecent" "1"
		"Timestamp" "timestamp"
	}
}

[aleatorio1337]

mesmo problema aqui =|

[jeanlorencini]

o mesmo aqui

[TCNOco]

The issue from the Before is:
{ "PersonaName" "nickname"
There should not be another opening { here.

Tab and spacing changes don't matter at all with VDF Steam's files, nor capatalization.

Very early versions of the TcNo Account Switcher manipulated the text of this file, whereas versions from 4.0+ (Jun 19, 2021) use a library made specifically for interacting with Steam's VDF files.

I assume you're up-to-date with the latest TcNo Account Switcher release, and not on a much older version: In which case is this error still happening now?

I can see the much older version having issues like this, but not the newer ones (2021+).

There were a few versions with broken auto-updaters, or none at all, so it may have never downloaded a newer version.

---

AllowAutoLogin must be a more recent Steam setting addition from Valve. I see this appears once Steam starts. This is removed when switching accounts, and once Steam starts it defaults back to 1.

In the upcoming release I have added this option to keep whatever was set beforehand.

This option should not have an effect on the failed to load error, as far as I know.