AnyLogic executeExpression exception - anylogic

Question

I am using AnyLogic 8 Professional 8.8.1. In my model I sample a repair time for a component that failed from a distribution that is configurable through an input file. To achieve this I specify the distribution in the input file as a String and then in the model, call the executeExpression after each failure to get the downtime for the component.
I have done this for various classes (agent types) in my model and have combined all the logic in a superclass, which the various components merely extend this class.
So far it worked perfectly (except for the annoying 1.6 JVM message see this question) until I tried to add the functionality to another agent. I simply made this agent also extend the superclass, so it is the exact same code executing.
Executing Expression triangular(82.0,287.0,123.0)
Expression returned: 150.21341253179259
Tue Apr 01 21:23:10 CAT 2025: stockyardFeed1 has broken down
Updating status
Executing Expression triangular(82.0,287.0,123.0)
Annotation processing got disabled, since it requires a 1.6 compliant JVM
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1. ERROR in \nmet_terminal_model\Expression_9_xjal.java (at line 75)
public class Expression_9_xjal extends nmet_terminal_model.Schematic$17{
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
The nested type nmet_terminal_model.Schematic$17 cannot be referenced using its binary name
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2. ERROR in \nmet_terminal_model\Expression_9_xjal.java (at line 78)
return triangular(82.0,287.0,123.0);
^^^^^^^^^^
The method triangular(double, double, double) is undefined for the type Expression_9_xjal.Performer
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2 problems (2 errors)
Exception during discrete event execution:
Truncated class file
To make it even more confusing is that I added a traceln writing the distribution to execute and its answer in the specific function and when making the distribution the same as another type of component in the input file you will notice that the first two lines in the console output works fine, but then when trying to run the exact same - it throws the error.