There seems to be reported problem on github with a workaround for those working in Docker.
https://github.com/n8n-io/n8n/issues/14678
or use this solution as I described (HTTP Node)
Changing the API version on docker
line 41 of GenericFuntions.js
"LinkedIn-Version": "202504"
Then stop your app and restart
if you think this solves the problem (for now) please hit the SOLUTION button