Only one of multiple Ideal 15.1 regions are getting a legitimate compile error.
How to tell if the Ideal regions are executing the same Ideal software?
Run an Ideal batch (IDBATCH) job to set @I$DIALMASK and compile the program:
//SYSIN DD *
SEL SYS sys
SET COM @I$DIALMASK 'ONLYALL'
COM pgm V
Then in the SYSDIAL output, search for: 'CMCD'
The "CMC*' are the compile modules, example showing release 15.1 and the assembly date and time:
====> ENTERED: CMCDEI 151 12/14/15 17.44
====> ENTERED: CMCDEP 151 12/14/15 17.44
To see all the loaded modules, search:
' ====> ENTERED:'