There is a KJAR with some declared fact types in kbase "kiedeclare" which are used by a second kbase "kiemodulemodel" which contains rules.

After updating a rule in "kiemodulemodel", loading the new kjar and updating it in the kcontainer (by using updateToVersion())... it is not possible to set the fields declared on kiedeclare kbsae. The fields are returning "null" and it seems like they can not be found under Message class.