After running TSSXTEND to copy security file to a new security file.
Ran TSSFAR and received "INVALID FIRST ARLB" message for each acid:
ARLB stands for Accessorid Record Logical Block. For each acid, there is an Accessorid Record containing all acid security information in the SECFILE.
Each Accessorid Record is composed of multiple ARLBs in memory, when it is in use.
You will get this, when: