Yes, Zodiac has changed the authentication slightly in a recent update. Unfortunately the thread is closed and I can't append the solution to the original topic you linked above.
You need to change one detail in the 'Format Post Request' function node preceeding the HTTP Request node. Delete the use of gzip and replace as follows -
msg.headers['accept-encoding'] = '*';
In the 'Format Get Request' function nodes preceeding the other HTTP Request nodes, similarly change gzip to that depicted above.