FYI The Visit Topic link in my email notification triggered this:
Thanks @JudyB!! I pulled this off the original Topic to better deal with it.
It was because the permissions weren’t set right for Discussions > Important. As you weren’t logged in, you couldn’t see it.
But it was meant to be publicly visible - I’ve now fixed that so the link should work fine whether logged in or not.
It is super helpful when people tell us this stuff - thank you!