it ditched all four of my pinned tabs I had saved for a project and now I can't remember what they were.
We may help on this.
Follow the Backup | Reset link and come back if you want to try.
For the other, it's Company's related, has been asked for a while, but no response.
"Off Topic Tip"
Follow the Signature's Backup | Reset link.
Take the opportunity to start a Backup plan and even create a Template Profile.