Auto Update Statistics Evaluation Error

Hello, IBM Informix Dynamic Server Version 12.10.FC3 OS: SLES11 SP2 (x86_64) after succesfully inplace migration from 11.70.UC7W3(32-Bit) to 11.70.FC7W3(64-Bit) and then directly to 12.10.FC3 we see every night following error message in the online.log: 01:00:26 SCHAPI: [Auto Update Statistics Evaluation 58-135] Error -272 No SELECT permission for sysdistrib.ninserts. I have tested the migration on several machines and the behaviour is the same: every migrated Informix-Server shows this error message every night. From dbaccess/isql i got no permission-problem when i do a select-query against the sysdistrib-table. Has somebody experiences with this ? Thanks for your efforts. Sascha