Apparently having the same bug, I noticed some error messages on my HercGUI console: ? CMS MAINT?=========?rexxtryREXX interpreter running (CMS bREXX 1.0.1 Jul ?5 2022)Enter any valid REXX instruction... type EXIT to quit.Rexxtry;''DMSITP143T PROTECTION EXCEPTION OCCURRED AT F209CC IN SYSTEM ROUTINE EXEC, RE-IPL CMS.CP ENTERED; DISABLED WAIT PSW '00020000 40F8B75E'?? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?HercGUI console:===========13:39:30.983 /13:39:30 GRAF 0C0 LOGON ?AS MAINT ? ?USERS = 00513:39:47.518 HHC00801I Processor CP00: Protection exception interruption code 0004 ilc 413:39:47.521 HHC02324I PSW=07ED200000F209C8 INST=42420000 ? ? STC ? 4,0(2,0) ? ? ? ? ? ? ? store_character13:39:47.521 HHC02326I V:00EBF000:R:00000000009C5000:K:06=9007F088 4100B000 55000688 47B0F078 ?..0h.......h..0.13:39:47.521 HHC02269I GR00=00009290 GR01=00009218 GR02=00EBF000 GR03=000007A013:39:47.521 HHC02269I GR04=00000050 GR05=00E91EF8 GR06=000398AA GR07=000091C013:39:47.521 HHC02269I GR08=0003AC74 GR09=00009008 GR10=00F20CEC GR11=0000900013:39:47.521 HHC02269I GR12=50F204DA GR13=000091C0 GR14=00F20A76 GR15=00039A7813:39:47.521 HHC02271I CR00=81800CC0 CR01=0FFFAE80 CR02=FFFFFFFF CR03=0000000013:39:47.521 HHC02271I CR04=00000000 CR05=00000000 CR06=A3F0BD58 CR07=0000000013:39:47.521 HHC02271I CR08=00000000 CR09=00000000 CR10=00000000 CR11=0000000013:39:47.521 HHC02271I CR12=00000000 CR13=00000000 CR14=EFC00000 CR15=00000000 ? Perhaps this helps. ?