Update Java to 1.8 update 141 on client to use Automation Studio, and then Automation Studio is failed with following error.

Error: Could not verify signing in resource: http://<server>:8080/nolio-app/apps/v2.0.0/lib/oro-2.0.8.jar

As a result, Automation Studio doesn't start.

This is known problem.

Reported this problem on Release Automation 6.2.

CA Support has new oro-2.0.8.jar to fix this problem, but it has not been published as of 25/Jul/2017.

Please contact CA Support to get the fix or check if latest cumulative patches include the fix.

- CA Release Automation Solutions & Patches
https://www.ca.com/us/services-support/ca-support/ca-support-online/product-content/recommended-reading/technical-document-index/ca-release-automation-solutions-patches.html

If you can accept, temporary solution is downgrade Java as well.