Red Hat Fuse on Karaf web console does not work after enabling SSL/TLS for Undertow

Issue

After following this guide [1] to enabling SSL/TLS for undertow, the web console does not work.
We also observe a WARN [2] during the start of the server.

[1]
https://access.redhat.com/documentation/en-us/red_hat_fuse/7.12/html/apache_karaf_security_guide/webconsole#WebConsole-EnableTLS

[2]

WARN  |  (change controller) | .p.w.s.u.i.UndertowServerWrapper | 238 - org.ops4j.pax.web.pax-web-undertow - 8.0.20 | Listener defined in external configuration will be removed, because it's not enabled: AcceptingChannelWithAddress{acceptingChannel=io.undertow.protocols.ssl.UndertowAcceptingSslChannel@5a068658, address=/0.0.0.0:8443, secure=false}