In our environment, after content update , the stuff(Pdf/PPT) in cache is not getting invalidated. And thus we are ending up with old content(PDF/Docx). And to work around this we end up clearing the dispatcher cache manually everytime. What could be the issue and where do I look at ?
I have checked the below articles
Prem Pratick Kumar
First look at dispatcher log if invalidate request is coming? If so verify the path & fix the issue accordingly.
If request is not reaching dispatcher verify launcher configuration & Workflow why it is failing or not trigeering.
The article you mentioned is write one & will work if you configured everything correctly.