APCYNAR is the MAT program that gets involved during the importing of list datasets( Narrow files).
Release : 12.0
Component : CA MAINFRAME APPLICATION TUNER
Checking on the job log for any message, the IMS profile cluster hlq.MAT.R120.RRDSIPP got out of space condition, as one could see on the joblog :
IEC161I 056-084,Z9472,APCYANAR,APCBIPP1,,,hlq.MAT.R120.RRDSIPP, 696
IEC161I hlq.MAT.R120.RRDSIPP.DATA,ICFCAT.SYS
IEC999I IFG0192A,Z9472,APCYANAR
There is a job in CAMAT.R12.CNTL member APCIJRDR, that will back up, delete/define the cluster and load the data using repro.
Running this job with allocation size bigger than current should solve the issue.
https://techdocs.broadcom.com/content/broadcom/techdocs/us/en/ca-mainframe-software/devops/ca-mainframe-application-tuner/12-0/administrating-pma/manage-the-ims-feature/ims-batch-jobs.html