Can anyone share your pcap file for internal messages?

Hi, I am working on Free5GC to investigate the messages between internal components.
For example, when a UE tries to access the 5G core, AMF sends an auth message (HTTP request) to AUSF and AUSF checks the information is on the UDM. All the messages should use HTTP but when I tried to capture the packets using tcpdump, I only see TCP packets with some encoded or encrypted payload data.

I will put the captured image of my AUSF.

Can anyone know why I cannot see HTTP header and payload?