To reproduce:
- Make 2 or more tabs, open any website (e.g., kagi.com) in all of them.
- Close Orion with cmd+Q or from the dock. Relaunch.
- You should see a Suspend Tab icon placed awkwardly on a tab title when loading from launch.
Screenshot:

Should not show any irregular placed icons on tabs.
0.99.128.2.1-rc (WebKit 619.1.11.111.2)
Mojave (10.14)