AEM Signing Tool UI Launch Fail

[#1]

Signing tool  launched but does not display UI. I have reinstalled, restarted CPU and still nothing.

MAC: 10.12.6

AEM Signing Tool: 2018.1 (release.2018.1-5)

X-Code: 9.2

[#2]

Ok. Thanks.

[#3]

Been told the team is looking into this. An update will be posted back.

[#4]

Yes and using java 8.

[#5]

Is this the doc topic you are following here?

Signing iOS and Android apps for AEM Mobile