This may be specific to how I use Brave, however it doesn’t feel like it, I’ll quickly do a run down of my setup.
macOS 10.12.2 (16C67)
Update Channel dev
I often have internal wiki pages open for where I work. These do not accept connections until I’ve opened VPN. So coming from a sleep/hibernation state - Brave reloads and fails to connect to any of these sites, this is expected.
Upon connecting to the internet and vpn, I switch over to Brave and try the “Retry the URL” in a specific tab. If there is a tab available to the right of this tab, it (often) loads the current tabs url into that tab. It appears to only happen, if the tab to the right is also a tab which has had an error occur on the page.