I fear you may have pushed the software beyond what it allows. I have tried recreating the problem here, but I couldn't do it unless I specifically type the @(1,1,1,9,KeepCase,Trim) function in the Folder field.
You'll notice that in this field, when you right click, the Select Data option is greyed out, meaning that it is not available. You probably bypassed this restriction by typing the command manually. This is unfortunately not supported.
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Technical Product Manager
I don't want to achieve immortality through my work; I want to achieve immortality through not dying - Woody Allen