Tunnel worked for a few hours and then stopped

Doing some more testing and here’s what I’ve found:

If I disable “no TLS verify,” I get error 502: Bad Gateway
If I enable “no TLS verify,” the connection times out, but I do see in the URL of the browser that it is directing me to, so it is getting partway there, that’s the login page for Nextcloud, it’s just not loading.

Nextcloud is using an origin certificate generated by Cloudflare

Here is the config for the tunnel:

And the SSL/TLS setting is set to Full(strict), but I’ve tried changing to flexible and that doesn’t fix it.

Any of this look wrong?