This typically indicates that the data configuration that the IQC tasks depend on is not configured right. Expand the query in the data configuration and verify if:
1. The Target type of at least one of the fields is set to "Variable Characteristic" . This should typically be the numerical field that is being plotted by the IQC chart
2. The Target Type of at least one of the fields is set to Time Stamp with Auto Update: First Update column
or the Target Type of at least one of the fields is set to Sample ID with Auto Update set to First Update column.
NOTE: Two fields cannot have Auto Update set to : First Update column. This indicates what identifies a unique case or sample.
Correct the above Target type and Auto Update column and try running the MAS task again.