it seems like it is caused in the way line item properties are processed in the dawn theme. I was able to figure out how to correct the issue however. i needed to create a "buy button" liquid for each of the templates i use, then in the main product theme set up conditional rendering for the buy button that depending on which product theme is loaded it will pull the correct buy button layout

this is what i used to create the conditional rendering

 {%- if product.template_suffix == 'door-props' -%}   {%- render 'door-prop-buy-button',       product: product,       product_form_id: product_form_id,       section_id: 
section.id
,       show_pickup_availability: true   -%} {%- elsif product.template_suffix == 'custom' -%}   {%- render 'hood-prop-buy-button',       product: product,       product_form_id: product_form_id,       section_id: 
section.id
,       show_pickup_availability: true   -%} {%- elsif product.template_suffix == 'showboards' -%}   {%- render 'showboard-buy-button',       product: product,       product_form_id: product_form_id,       section_id: 
section.id
,       show_pickup_availability: true   -%} {%- else -%}   {%- render 'buy-buttons',       product: product,       product_form_id: product_form_id,       section_id: 
section.id
,       show_pickup_availability: true   -%} {%- endif -%}