CICS hangs unexpectedly, and the region requires FORCE to terminate. You've gathered a dump on an ABEND 0C4 in DFHDSTCB
The problem appears to be caused by the changing of the THREADLIMIT (due to the limit being reduced).
An update is required to embedded open source libraries.
During TRANSACTION_BUILD processing, module DFHDSKE incorrectly calls DFHDSAC for function FREE_OPEN_TCB for an L8 TCB. DFHDSAC
A 64-bit non-LE Assembler program gets abend APST on a SPOOLOPEN command.