Not sure if it the same, but I getting tabs' mess after Orion is restarted. The strange is that this not quite stable behaviour. I can reproduce it with 50/50 chance.
My steps to reproduce is:
- Create new window, and a tree of tabs (like 1, 1.1, 1.1.1, 1.1.1.1, 1.2, 1.3), and close the browser
- Open the browser
- Click all tabs from bottom to top
- Ctrl-Tab from the top
So in step 3 it will cycle either 1, 1.1, 1.2, 1.3, 1.1.1, 1.1.1.1, or 1, 1.1, 1.1.1, 1.1.1.1, 1.2, 1.3.
If one will restart the browser, it could cycle in different order (one of these two).