Lost Two Whiteboards Progress

Have an image on a Whiteboard page.
Make a new page from the image by clicking the URL icon
Named it “Notion” but the page opened as “notion” not capitalized
I rename the page to Notion with a capital N
Then it ask me if Im sure If I want to rename the board. I say yes.
Go back to the whiteboard page and it is completely gone, empty. You lose all progress.
Happened to me twice before I learned my lesson