TWS not working in Macro Language

[Kitty20248]

Hello,

I have FIJI Windows 64bit with the Trainable Weka Segmentation v 3.3.4 plugin and I am trying to run the TWS commands using macro langauge (.ijm langauge) on a .tif image open in FIJI as follows;
run("Trainable Weka Segmentation");
call("trainableSegmentation.Weka_Segmentation.loadClassifier", "D:\Clinical-Cornea-Wound-OCT-images\corneacClassifier.model");
call("trainableSegmentation.Weka_Segmentation.getProbability");
but nothing happens. The image is opened in the TWS window but the classifier is not applied and the probability map is not outputted. Any suggestions for a fix?
Note: the location of the corneaClassifier.model file is indeed the correct location, I have checked this.