case Statement in range type spec

I'm trying to create a case statement for an output specification in maestro. An example of the first few outputs is the following:

"range (case(VAR(""ical_sel"") (""0"" 0.02) (t 0))) (case(VAR(""ical_sel"") (""0"" 0.03) (t 0.001)))"

"range (case(VAR(""ical_sel"") (""1"" 0.02) (t 0))) (case(VAR(""ical_sel"") (""1"" 0.03) (t 0.001)))"

"range (case(VAR(""ical_sel"") (""2"" 0.02) (t 0))) (case(VAR(""ical_sel"") (""2"" 0.03) (t 0.001)))"

"range (case(VAR(""ical_sel"") (""3"" 0.02) (t 0))) (case(VAR(""ical_sel"") (""3"" 0.03) (t 0.001)))"

I've tried using with and without quotes for the variable type and also tried using ical_sel directly without wrapping it in the VAR operator (two sets of double quotes are shown in the text file output, in the maestro view there is only one double quote).

The ical_sel variable in the design variable list looks like this: {From/To}Linear:0:1:3{From/To}.

This is an ams simulation, I've used this type of expression in the past using spectre without any problem and from the documentation and testing in the CIW it seems like the case statement should work as expected but the output is always evaluated with the (t 0) or (t 0.001) case.

Tool version is IC23.1-64b.ISR16.19.