Find() Not working

Despite having standardized the look-up field, my table is giving very distinctly different answers in the formula field. An image of the formula field + look-up field are below. What could possibly be going wrong? What can I test to fix?

My formula is:

FIND(‘T003: Symptom’, {Rel_lookup_Terms_Type})

More often than not, a lookup field returns an array, not a string, and FIND() only works on strings. You can force-convert the output of any field into a string by concatenating it with another string, including an empty string:

FIND('T003: Symptom', {Rel_lookup_Terms_Type} & "")

A deep dive into field types and what they return—including lookup fields returning collections of those types—can be found here:


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