I am unable to reproduce the issue after changing the settings – here’s the types section from outputs.eve-log that produces the desired results with my setup:
types:
- alert:
payload: yes # enable dumping payload in Base64
# payload-buffer-size: 4kb # max size of payload buffer to output in eve-log
payload-printable: yes # enable dumping payload in printable (lossy) format
# packet: yes # enable dumping of packet (without stream segments)
# metadata: no # enable inclusion of app layer metadata with alert. Default yes
http-body: yes # Requires metadata; enable dumping of HTTP body in Base64
http-body-printable: yes # Requires metadata; enable dumping of HTTP body in printable format
# Enable the logging of tagged packets for rules using the
# "tag" keyword.
tagged-packets: yes