@MrCaringi:
Good news: your JB is okay, which is why you don't see anything when re-applying the hotfix

.
Good news˛: You're trying to install
K4 packages, which is why it's not working

.
You have a PW2

. cf. the
S/N list for the gory details.
FYI: When MrPi says it's destroying the package, that's because you're doing something wrong

. Here, because it didn't match your device.