I have found now that there are columns that share the same initials, so I excluded them from being loaded like so:

- '!contacts.property_hs_time_between_contact_creation_and_deal_creation*'
        - '!contacts.property_hs_time_between_contact_creation_and_deal_close*'
        - '!contacts.properties.hs_time_between_contact_creation_and_deal_creation'
        - '!contacts.properties.hs_time_between_contact_creation_and_deal_creation.value'
        - '!contacts.properties.hs_time_between_contact_creation_and_deal_close'
        - '!contacts.properties*'

The error persists however.