This is a newly opened profile.
I just close the top tree of all sleeping tabs
Then tried to create a new tab by
1) Clicking on the + button
2) Using the right click menu
No new tab
Also use file->New tab (not on the video)
Tab management is just getting worse each release. I have not seen this error before.
It almost feels like if you do any thing with tabs that are sleeping then you need to close and restart Orion.
I get a new tab
Version 0.99.136.1-rc (WebKit 623.1.8.0.0)
Sequoia (15)