In Qlik Sense and in SaaS it is possible to create two or more Master Measures with the same name. Sense does no show any errors or warning but, if you use that Measure name in a formula, you get a generic error in the formula editor and incorrect results. This happens because Sense cannot understand what of the Master Measure to use.
I would suggest to introduce a warning that prevents the use of Master Measures with the same name.
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