LTM Hotfix wipe off cron job and shell script

hi AP, that is expected behavior. Anything you do the system outside of configuration awareness will not be carried forward with a hotfix or upgrade. You can try the process Arnaud is suggesting, but I believe the USC configuration files are not carried forward either so it would likely not work.

What version are you on, and what does your script do that requires cron? In newer versions, three are alternatives with iCall and now built-in functions that used to require system scripts.