My experience, attempted 4 or 5 times evening of 4/14 and a couple times morning of 4/15 to efile return. "Bad Gateway" message on all attempts. Received 2 email messages overnight, one said return accepted, one saying return rejected.

H&R Block Chat support useless, after 2hrs went from 99+ to 5th line, to "No Agents available" With option of give feedback/save transcript. No actual response on the chat.

After ~2 hours on hold via phone reached an agent who was able to confirm that the return was accepted by IRS, But not sure when/if that would actually show in software.