ValidationInsightException when updating Assets attributes

Hi,
need help troubleshooting exception in Assets ObjectFacade when trying to update attributes in scriptrunner.

ValidationInsightException: Validation errors were found: rlabs-insight-attribute-297: ErrorMessage{i18nKey='rlabs.insight.i18n.constraint.violation.unique

The error started to appear after Jira upgrade(8 → 9), before scripts were executing correctly. The exception is raised when I try to edit asset attributes.

void storeObjectAttributeBean(ObjectBean objectBean, Integer attributeId, String... values) {
    ObjectTypeAttributeBean objectTypeAttributeBean = objectTypeAttributeFacade.loadObjectTypeAttribute(attributeId).createMutable()
    ObjectAttributeBean objectAttributeBean = objectFacade.loadObjectAttributeBean(objectBean.getId(), objectTypeAttributeBean.getId())
    ObjectAttributeBean newObjectAttributeBean = objectAttributeBeanFactory.createObjectAttributeBeanForObject(objectBean, objectTypeAttributeBean, values)
    if (objectAttributeBean != null) {
        newObjectAttributeBean.setId(objectAttributeBean.getId())
    }
    objectFacade.storeObjectAttributeBean(newObjectAttributeBean)
}

void deleteObjectAttributeBean(ObjectBean objectBean, Integer attributeId) {
        ObjectAttributeBean objectAttributeBean = objectFacade.loadObjectAttributeBean(objectBean.getId(), attributeId)
        if (objectAttributeBean) {
            objectFacade.deleteObjectAttributeBean(objectAttributeBean.getId())
        }
    }

The exception is raised when methods are invoked multiple times in a short time.

deleteObjectAttributeBean(asset, attributeId);
storeObjectAttributeBean(asset, attributeId);
deleteObjectAttributeBean(asset, attributeId);
storeObjectAttributeBean(asset, attributeId);

But if I insert Thread.sleep(1000) between each invocation, then no exceptions are raised.