I have updated version 1.3.1 on M2.4.1.
Uncaught SyntaxError: Unexpected token } in JSON at position 140
The JSON is:
The issue happens due to the module's bug in the case that orders do not the customer address attribute
To solve this issue, we have edited this file app/code/Bss/CustomerAttributes/view/adminhtml/templates/order/address/form.phtml
Please check and apply the fixed attachment to the site.
If you need any further assistance, please feel free to contact us.
We're more than happy to support you