Host icepp.login.jp not found in /home/ttaak_000/.ssh/known_hosts

ttaak_000@fmv2 ~
$ icepp
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@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
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IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that a host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
SHA256:mm08WR1S6IUA+au+ZDhY9q8WxYjrnyzg0JHuGahzYDU.
Please contact your system administrator.
Add correct host key in /home/ttaak_000/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /home/ttaak_000/.ssh/known_hosts:1067
RSA host key for login.icepp.jp has changed and you have requested strict checking.
Host key verification failed.

ttaak_000@fmv2 ~
$ alias
alias atlaspc7='ssh -Y kondo@atlaspc7.kek.jp'
alias icepp='ssh kondo@login.icepp.jp'
alias lxplus='ssh -Y kondo@lxplus.cern.ch'

ttaak_000@fmv2 ~
$ ssh-keygen -R login.icepp.jp
# Host login.icepp.jp found: line 1067
/home/ttaak_000/.ssh/known_hosts updated.
Original contents retained as /home/ttaak_000/.ssh/known_hosts.old

ttaak_000@fmv2 ~
$ icepp
The authenticity of host 'login.icepp.jp (157.82.112.202)' can't be established.
RSA key fingerprint is SHA256:mm08WR1S6IUA+au+ZDhY9q8WxYjrnyzg0JHuGahzYDU.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'login.icepp.jp' (RSA) to the list of known hosts.
Warning: the RSA host key for 'login.icepp.jp' differs from the key for the IP address '157.82.112.202'
Offending key for IP in /home/ttaak_000/.ssh/known_hosts:1070
Are you sure you want to continue connecting (yes/no)? yes
kondo@login.icepp.jp's password: