Java Drools how to properly load .rf file? (reverse execution, why?) - spring-boot

Question

Hello i was migrating from drools from 5.1.0 to 7.66.0.FINAL, it is working properly on .drl files but .rf files are probably not loaded correctly.
here is my old core 5.1.0 to load .drl and .rf
private KnowledgeBase computationKnowledgeBase;
public void loadDrls() {
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add(newReaderResource("Calc.drl"), ResourceType.DRL);
kbuilder.add(newReaderResource("Calc.rf"), ResourceType.DRF);
if (kbuilder.hasErrors()) {
this.log.error(kbuilder.getErrors().toString());
}
this.computationKnowledgeBase = KnowledgeBaseFactory.newKnowledgeBase(KnowledgeBaseFactory.newKnowledgeBaseConfiguration());
this.computationKnowledgeBase.addKnowledgePackages(kbuilder.getKnowledgePackages());
StatefulKnowledgeSession session = this.computationKnowledgeBase.newStatefulKnowledgeSession();
if (log.isDebugEnabled()) {
session.addEventListener(new LoggingAgendaEventListener(log));
}
session.insert(something);
session.insert(something2);
session.fireAllRules();
session.dispose();
}
}
here is my 7.66.0 code:
here is my old core 5.1.0 to load .drl and .rf
private KieBase computationKnowledgeBase;
public void loadDrls() {
KieBase knowledgeBase = KnowledgeBaseFactory.newKnowledgeBase(KnowledgeBaseFactory.newKnowledgeBaseConfiguration());
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder(knowledgeBase);
kbuilder.add(newReaderResource("Calc.drl"), ResourceType.DRL);
kbuilder.add(newReaderResource("Calc.rf"), ResourceType.DRF);
if (kbuilder.hasErrors()) {
log.error(kbuilder.getErrors().toString());
}
this.computationKnowledgeBase = knowledgeBase;
StatefulKnowledgeSession session = (StatefulKnowledgeSession) this.rulesCache.getCalculationKnowledgeBase().newKieSession();
session.insert(something);
session.insert(something2);
session.fireAllRules();
session.dispose();
}
dependency:
<!-- Drools -->
<dependency>
<groupId>org.kie</groupId>
<artifactId>kie-api</artifactId>
<version>${drools.version}</version>
</dependency>
<dependency>
<groupId>org.drools</groupId>
<artifactId>drools-core</artifactId>
<version>${drools.version}</version>
</dependency>
<dependency>
<groupId>org.drools</groupId>
<artifactId>drools-compiler</artifactId>
<version>${drools.version}</version>
</dependency>
<dependency>
<groupId>org.drools</groupId>
<artifactId>drools-decisiontables</artifactId>
<version>${drools.version}</version>
<exclusions>
<exclusion>
<artifactId>jxl</artifactId>
<groupId>net.sourceforge.jexcelapi</groupId>
</exclusion>
</exclusions>
</dependency>
problem is that it does load .rf file but it does not working properly (on .rl file we've got order of rules and it does not execute in correct order how it worked on older drools)
EDIT:
I have updated code with sessions, problem is that in new drools there are not StateFullKnowledgeSession only newKieSession.
Problem with this is that on .rf file i have order of execution rule methods, but when i upgrades it like this, drools are working but order of execution (defined on .rf file) is not working properly.
EDIT2:
it is related to this answer, on drools v5 it is executing .rf correctly
on v 7.66.FINAL it is executing on reverse order
https://github.com/tenkyu/drools-flow-order
https://groups.google.com/g/drools-usage/c/GK5OPUXQl5Q/m/NZQFVsYvBQAJ
Has anybody had this problem?
SOLUTION:
downgrade drools to 6.4.0 version, it is version where .rf files are not executing in reverse order