I'm encountering a strange issue where the default Contact field on the Opportunity record isn't showing any data despite whatever view I use - including all contacts.
I have confirmed that there is no filtering on this field:
Out of curiosity, I added a new custom field called "Primary Contact" with the same relationship to the Contact entity and that lookup seems to work fine.
I'd rather not use a custom field if I can avoid it as I feel like the OOB field should be adequate.
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