RRCConnectionReestablishment

Is RRCConnectionReestablishment implemented in the Core? I’m using Free5GC with OAI and currently I am testing the OAI UE resynchronization. I’m encountering an error on the UE which says that RRCSetup is being sent in response to RRCConnectionReestablishmentRequest causing the UE to not establish a connection to the Core. Im testing this by having the Core running, then I bring up the gNB. The UE is then started and everything works as expected. Then to test, I stop the gNB and bring it back up a few seconds later. The UE finds it but breaks down when it does not receive RRCConnectionReestablishment.