When executing EXPC I receive the following abends
DFHAP0001 ABEND CODE 0C4/AKEA in module ECDIEXPC at offset X'00000344'
(Module:DFHMEME) CICS symptom string for message DFHAP0001 is PIDS/564805400 LVLS/411 MS/DFHAP0001 RIDS/DFHSRP PTFS/VSE411 AB/S00C4
AB/UAKEA RIDS/ECDIEXPC ADRS/00000344.
z/VSE any level
CICS/TS 1/1 and above
Explore for CICS 7.0
Explore for VSE 7.1
Recommend ECTIEXPC instead of ECDIEXPC, for your CICS/TS region.
You could possibly change your programs defined to CICS to ECTxxxxxx and this may correct the issue as well.