Delivery Instructions double display Issues

We are using the Delivery Instructions for customer to provide additional delivery information like apartment buzz code etc.

but it displays in our order admin like below:

I do not understand why it is duplicated. I have contacted Shopify, and was instructed to contact our app provider, but they do not think this is from the apps. does any one has the same issue with us?

I even tried to disable the apps and found they are still there.

by the way we just could not found the variables for this “Delivery Instructions”, they are not included in the “{{attributes}}”, I may open another topic for this…