This has now fixed itself!
A few minutes ago I had tried several FamilySearch hints both to records and Tree and got an
Error 404 -
Well, this is unexpected…
We can help you search literally billions of records, but we can’t seem to find the page you’re looking for.
I get the error when clicking from the Hint summary but if I click the following link that is generating the error it takes me to the correct item on FamilySearch
After creating this message I went back and clicked a few more hints and it is now working