well, a twist of the tale (going all Genesis on y'all here):
let's resume from where we stopped, i.e. we decided to drop and create again all our WRKDB tablespaces, with SECQTY 0, and just leave the last one as SECQTY -1.
I made a silly little batch job and ran it against one of our test groups which is at FL100, all good, then ran it against the other group which is at FL500 and I get an abend:
CEE3250C The system or user abend S04E R=00C90206 was issued.
From entry point DSNTEP2 at compile unit offset +000026D2 at entry offset +000026D2 at address 28FB579A.
DROP TABLESPACE WRKDB31.DSN32K00;
I tried it via SPUFI and get exactly the same abend.
Furthermore, I have this entry in my SYSLOG:
DSNI013I -DB32 DSNIIDIS POTENTIALLY INCONSISTENT 364
NAME DSNDB06 .SYSTSTSP.X'0000004F'
DSNI013I -DB32 DSNIIDIS POTENTIALLY INCONSISTENT 365
NAME DSNDB06 .STPRTSRI.X'0000000A'
please note that the ABEND seems to occur in the other subsystem in our DS group (DB31)...
I am opening a PMR as we speak, but I thought I would share the pain and ask for any suggestions...
PS stay safe and healthy
NB black lives matter