2723934 - Non-Fatal error 's_barray.cxx:11884' happened on FP variable page of a column -- SAP IQ

Customer upgraded IQ version to 16.1 SP02.12  from 16.1 SP02.10  in order to apply the fix of CR 814650 on 2018-11-20.  It happened while inserting  data  into existing table. But sp_iqcheckdb 'verify table' report 'No Errors Detected'. It seems the  s_barray error is detected when new modification is applied, rather than being existing inconsistency.

  **.iqmsg :
 
       I. 11/20 13:57:42. 0000002149 Page Header:
       ...
       I. 11/20 13:57:42. 0000002149 VariablePageHeader:
       ...
       I. 11/20 13:57:45. 0000002149     **       Non-Fatal IQ Internal Error Detected
       I. 11/20 13:57:45. 0000002149     **       at slib/s_barray.cxx:11883  on thread 333335 (TID 1296)
    
  ** stacktrace :
       ===== Thread Number  ....
       .. pcstkwalk
       .. ucstkgentrace
       .. StackTraceForThisThread
       .. hs_idxexception::hs_idxexception
       .. hs_ThrowIdxException
       .. s_mergeFINALWriter::CompletePage
       .. s_mergeFINALWriter::WriteLHSBlockVarConstant
       .. s_mergeFINALWriter::DoInsert
       .. hs_dpInsert::Insert

SAP IQ16.0

SAP IQ 16.1

"s_barray.cxx" ; CR817478;CR 817478;817478; 814650 ;  'variable-length FP' ; , KBA , BC-SYB-IQ , Sybase IQ , Bug Filed