Journal is full of messages "docker_sandbox.go Failed to retrieve checkpoint unexpected end of JSON input" in RHOCP3.11

Issue

• Upon observing the journal logs, the following pattern seems to repeated numerous times.

Jul 13 09:12:00 testhostname atomic-openshift-node[82003]: E0713 09:12:00.089546   82003 docker_sandbox.go:526] Failed to retrieve checkpoint for sandbox "82d634079a22f362afc11e0e95ab997442b6e7fbc10a61169b776e5c35162072": unexpected end of JSON input

• The error is repeated many times.

$ egrep "docker_sandbox.go" 0010-journalctl_202107130912.log | awk '{ print $(NF-5) }' | sort | wc -l 
570