Steps to reproduce
In Commerce Manager perform the following steps:
1. Create a new order and add 2 or more line items to an order.
2. Add a billing address and a shipping address.
3. Select a shipping method and click on the "Recalculate" button.
4. Try to delete any line item other than the last one.
5. The UI should become unresponsive and you will get the following client-side error as I listed below.
"Uncaught Sys.WebForms.PageRequestManagerServerErrorException: Sys.WebForms.PageRequestManagerServerErrorException: Workflow generated an exception, please look at the previous error for more details."
The workaround for avoiding this error is to only delete the last item in the list of line items; repeat and re-add line items as needed.
