I'm having difficulties,
Here is the code and setup :
<lightning:recordEditForm objectApiName="CustomObject__c">
<lightning:inputField aura:id="accCompId" fieldName="PAccount__c" onchange="{!c.updatePersonInfo}"/>
<lightning:inputField aura:id="signCompId" fieldName="Signatory__c" onchange="{!c.updateContactInfo}"/>
</lightning:recordEditForm>
Here is the result when I try to look for an existing record that the user has access to (on left panel it's the lookup inputfield, on right panel it's the record page)
The inputfield for PAccount__c is giving me the results based on the text search, but the Signatory__c (lookup to Contact) isn't. I checked the filter, profile, OWD, all seems correct. Any idea why can't the user see the contacts ?