Alright, For those having the same problem and monitoring evolutions in replies, here is the tip: 1. Remove the Add-on for ARM64 + assert from shell (no PSC add-on when ls -l of $SPLUNK_HOME/etc/apps) 2. Install the Add-on for x86_64 3. Restart the Splunk instance (UI or CLI) The problem was simply that for M2-running Splunk instance (using Rosetta 2) necessitates x86_64 libraries for Python. Installing the ARM64 ones don't help. BUT installing the x86_64 without removing first the ARM64 won't help. I hope this will help other M2-Splunk fellows. Good luck  ... View more