Pin ROC version to 1.4.64 in 'latest' config

Change-Id: Idc2c03809e0687427bc5b68ee3553fecdbf016f7
diff --git a/configs/latest b/configs/latest
index 7f477f3..bd7eb81 100644
--- a/configs/latest
+++ b/configs/latest
@@ -9,7 +9,7 @@
 5G_RAN_SIM_CHART         := aether/5g-ran-sim
 
 # For installing the ROC
-AETHER_ROC_UMBRELLA_CHART := aether/aether-roc-umbrella
+AETHER_ROC_UMBRELLA_CHART := aether/aether-roc-umbrella --version 1.4.64 # last release compatible with v4 models
 ATOMIX_CONTROLLER_CHART   := atomix/atomix-controller
 ATOMIX_RAFT_STORAGE_CHART := atomix/atomix-raft-storage
 ONOS_OPERATOR_CHART       := onosproject/onos-operator