API call fails synchronously with parameter not addressable

If a parameter specified in the API call is not addressable by TCP/IP when creating the SOCKAPI record, the string (** PARAMETER NOT ADDRESSABLE **) is shown instead of the parameter value. The parameter address is shown at the far right, as usual.

====================================================================00021347A   
 VIC102    SOCKAPI   60050050  17:36:51.302111   SEND Entry                   
                                                                              
HASID....0026     PASID....0026     SASID..0026     JOBNAME..USER2            
TCB......006D6D50 TIE......0000BDF8 PLIST..0000BE0C DUCB.....00000009 KEY..8 
ADSNAME..USER2    SUBTASK..EZASOKEC                 TOKEN....7F755798 09806FB0
LOCAL  PORT..0         IPADDR ..0.0.0.0                                 
REMOTE PORT..11007     IPADDR ..9.37.65.134                             
 SOCKET...:  0                                                  Addr..0000BA50
 NBYTE....:  96                                                 Addr..0000BA6C
 BUF......:  (** PARAMETER NOT ADDRESSABLE **)                  Addr..00015F38
 FLAGS....:  0 (NONE)                                           Addr..0000BC04