Tested on windows 7 & 10 using chrome M58 #58.0.3000.0 and didnt observe any issue .

Attached screencast for reference.

@joe8618-- Could you please check the attached screencast and confirm us if we had missed out anything in reproducing the issue and please help us by providing the screencast of the issue.

Thanks!

Deleted: 688031.mp4 1.1 MB

	688031.mp4 1.1 MB View Download

Issue exists with "Open a specific page or set of pages" setting. Pinning that tab and then with "Use current pages" setting the issue should reproduce (did here in 58.3000.4).

Tested on windows 7 using chrome latest canary M58 #58.0.3003.0 and issue is not reprodcued.

Steps followed  to repro :

1. pinned a tab and set the chrome :// setting , on start up to "Open a specific page or set of pages " and closed the browser and reopened.
2. Didn't observe any duplicate full tab.

Attached screencast for reference.

@joe8618-- Could you please provide us the screencast of the issue along with your machine configuration details, that would help us in traiging the issue better.

Thanks!

Deleted: 688031 (1).mp4 1.4 MB

	688031 (1).mp4 1.4 MB View Download

Thank you for your assistance. On a hunch, I ran Chrome in Windows 7 compatibility mode and the issue is resolved. Obviously a Windows 10 (x64 here) issue and could be a problem if it bleeds down into the stable channel. Workaround is fine here and feel free to close this one if desired. 

As per comment #5, Closing the issue and please feel free to raise a new issue in future if you have any issues in latest chrome channels.

Thanks!