Why some "Startup Programs" not starting at Windows startup?

Using Windows 10 preview version.
Some of my start-up programs are not starting with Windows.

I can see them from the Task Manager and they are still showing Enabled at startup.

Screenshot of Task Manager:

But they are not actually starting with Windows. Each time the Windows boot up I need to start those needed programs manually.

I'm not sure if this is a bug of Win10 preview yet to be fixed or only I'm having this problem. Is there any ways to solve this issue?

Thanks in advance!

Solution 1:

Pretty weird but I just figured out the issue anyway.

I was using the Start Screen and some startup program was not starting with Windows.
Recently I switched to Start Menu and everything working perfectly.

I will report this issue too via Windows Feedback.