Slack Desktop wont open on login

I would like to know why slack windows 10 desktop app does not seem to use the "Launch app on login" settings. I set it to checked but it still does not auto run the application.

I even added it manually to the Windows startup folder but it still does not work.

C:\Users\Username\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup

Any ideas? other settings?

There seems to be no answer from public so I asked the Slask support desk and here is the response.

Sorry for the troubles with that Launch On Login setting! This is sadly a known bug that the Windows engineers are working on at the moment.

I don't have an ETA to give on when the bug might be resolved, but I have attached this ticket to our internal bug tracker for you. As soon as I hear of any news or updates, I will let you know right away!

Since this is not the answer, I will wait if others have workaround for this. If not, I will close the question in a week.

More a workaround than a true fix: You can right click Slack and "Pin to Taskbar". That makes it easier until "Launch on Startup" gets fixed.

If you want more of a true fix now, and are a bit tech savvy, you could follow one of the methods suggested here to add a shortcut to the program to one of the startup folders. https://tunecomp.net/add-program-to-startup-windows-10/