Hello,
Could you try executing the following commands via SSH to see if it helps?
uci set uhttpd.main.listen_https='0.0.0.0:<your_https_port>'
uci commit uhttpd
/etc/init.d/uhttpd restart
If the issue persists, please fill out the form sent to you. When completing it, use 12001 as the ticket ID. Once submitted, we will contact you privately for further assistance and issue investigation.
Best regards,