Hello there !
I'm just download via Evaluation & Demo License Download Portal MicroFocus Idol ver 12 (IDOLServer_12.0.0_WINDOWS_X86_64.exe) for testing some features and demonstration for customers. After fresh installation IDOL 12 on Windows Server 2016 Tomcat service doesn't start. So I couldn't even get access to Idol Site Admin interface. I collected some logs, hope it helps to resolve an issue.
I don't have a SAID number because of demo eval license and hope that community give me a suggetion to solve this problem.
Thanks.