Decision Server xPaaS cannot scale to greater than two replicas

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We are able to scale the Decision Server 6.3 image to 2 replicas, but anything greater causes the new replicas' pods to crash loop back off with the following errors:

"JBossAS process received KILL signal"
"Readiness probe failed"
"Liveness probe failed"

I can provide the full logs if necessary. Are there any special code changes that need to be made to scale to more than 2 replicas?

We're using the RedHat s2i templates from here:
https://github.com/jboss-openshift/application-templates/blob/master/docs/decisionserver/decisionserver63-basic-s2i.adoc

DJ

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