npm group repository does not return correct latest version

SYMPTOM:

After publishing a newer version into NPM hosted repository, a NPM group repository, which has this NPM hosted repository as a member, does not show this newly published version in the "latest" tag.

REPRODUCE STEPS:

1. Install NXRM 3.40.1 with H2 (starting Nexus with "nexus.datastore.enabled=true")
2. Create npm-hosted, npm-proxy, npm-group repositories
3. Publish some dummy package:

   export _NEXUS_URL='http://localhost:8081/'
   cat << EOF > ./package.json
   {
     "name": "lodash-vulnerable",
     "version": "1.0.0",
     "description": "",
     "main": "index.js",
     "scripts": {
       "test": "echo \"Error: no test specified\" && exit 1"
     },
     "keywords": [],
     "author": "",
     "dependencies" : {
       "lodash": "4.17.4"
     },
     "license": "ISC",
     "publishConfig":{"registry":"${_NEXUS_URL%/}/repository/npm-hosted/"}
   }
   EOF
   
   npm publish --registry "${_NEXUS_URL%/}/repository/npm-hosted/" -ddd
   

4. Confirm npm-hosted and npm-group both show "1.0.0"

   curl -s "${_NEXUS_URL%/}/repository/npm-hosted/lodash-vulnerable" | python -m json.tool | grep '"latest"'
   curl -s "${_NEXUS_URL%/}/repository/npm-group/lodash-vulnerable" | python -m json.tool | grep '"latest"'
   

5. Publish newer version

   sed -i.bak 's/"version": "1.0.0"/"version": "1.1.0"/' ./package.json
   npm publish --registry "${_NEXUS_URL%/}/repository/npm-hosted/" -ddd
   

6. Again, check the latest versions for npm-hosted and npm-group with curl

EXPECTED BEHAVIOUR

By using above repro steps, the "npm-group" should show 1.1.0.

ACTUAL BEHAVIOUR:

The npm-group repo shows 1.0.0.
NOTE: 3.38.0 returns expected 1.1.0.

WORKAROUND:

Click [ Invalidate cache ] from the npm-group repository config page.