We suspect you are reporting something similar to the following symptoms...
GIM35101E ** SYSMOD CW11000 FAILED BECAUSE OF AN ERROR THAT OCCURRED
WHILE LOAD ING SMPTLIB DATASET
IEB1013I COPYING FROM PDSU INDD=SMPPTFIN VOL=W03000 DSN=CAI.CW11000.F3
IEB1014I TO PDSE OUTDD=SMPTLIB VOL=SSYS04 DSN=SSWCSYS.CCS30.CW11000.F3
IGW01513T RECFM INCOMPATIBLE -- INPUT RECFM = U OUTPUT RECFM = FB
If this is the case, then your problem is likely associated with how your DFSMS ACS routines are defined. Please refer to IBM document BDC000021715 for details. As a circumvention, you can pre-allocate the associated relfiles with attributes:
DSORG=PO RECFM=U LRECL=0 BLKSIZE=6144 DSNTYPE=LIBRARY