Do Formulas and Read-Only get along in Form Calculations?

I have a form that when I plug-in formulas in form calculation widget... they work just fine until I set the field to "read-only". Then the formulas stop working. When I revert back to the way it was... turning off "read-only"... doesn't make the formulas work again. Not sure why.

A couple of example fields are #input_73 and #input_75 that this is happening to.

I cloned the form, the issue is the commaSeparate math function, please add an extra parenthesis in each formula of your Form Calculation widgets, example:

Result:

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