Have created a new jail (again), followed the same procedure, 1 through 6 (see above) which is also what you have suggested. Same result -> "JNA Native: java.lang.UnsatisfiedLinkError: Can't obtain class com.sun.jna.JNIEnv, as reported by alvistar" I suspect issue with filebot. Can you please tell ...

Having exactly the same issue following the steps on this threath 1) installed 'clean' FreeNAS jail (FreeBSD test_filebot 11.1-STABLE FreeBSD 11.1-STABLE #0 r321665+d4625dcee3e(freenas/11.1-stable): Wed Dec 13 16:33:42 UTC 2017 root@gauntlet:/freenas-11-releng/freenas/_BE/objs/freenas-11-releng ...