This diagnostic applies only to named tunable parameters (parameters with a non-Auto storage class).

The default value forDetect loss of tunabilityfor ERT-based targets iserror. When you switch from a system target file that is not ERT-based to one that is ERT-based,Detect loss of tunabilityis set toerror. However, you can change the setting ofDetect loss of tunabilitylater.

If a tunable workspace variable is modified by Mask Initialization code, or is used in an arithmetic expression with unsupported operators or functions, the expression is reduced to its numeric value and therefore cannot be tuned.