--checksig

I am trying to work with public gpg sigs on a centos 7.9 system and no matter what rpm I use, I get the same error, "No such file or directory":

rpm -qa | grep lgto
lgtoxtdclnt-19.3.0.1-1.x86_64
lgtoclnt-19.3.0.1-1.x86_64

pwd
/etc/pki/rpm-gpg
ls -al | grep Network
-rw-r--r--. 1 root root 948 Aug 25 2022 RPM-GPG-KEY-Networker193
-rw-r--r--. 1 root root 968 Aug 25 2022 RPM-GPG-KEY-Networker92121

rpm --checksig -v lgtoxtdclnt-19.3.0.1-1.x86_64.rpm
error: lgtoxtdclnt-19.3.0.1-1.x86_64.rpm: open failed: No such file or directory
rpm --checksig -v lgtoclnt-19.3.0.1-1.x86_64.rpm
error: lgtoclnt-19.3.0.1-1.x86_64.rpm: open failed: No such file or directory

It is the same for any rpm that looks like it has a gpg key. Am I using the wrong syntax?

Thanks.