Left parentheses "banned". Use [square brackets] instead.

[Jimaz]

Okay, this is interesting. After getting the Forbidden page, I edited the URL in the location bar to replace the hyphen with a left parenthesis, both before "Documentary" and "2021" and the page came up normally!

At least we have a manual workaround now.

Kathleen, I think you can edit the title in the "Go Advanced" controls if you want. Maybe replace the brackets & parens with {braces}?

Here's a link to it: Abandoned Detroit - The City of Neglect [[Documentary) [[2021)