Unshipped order report and customised order file isses

Since Wednesday last week I have a problem with custom orders

I normally download the ‘unshipped order’ report

I have a script with downloads the custom order zip file , extract the contents

Then use the .json files to extract the custom order details

the file names of the .json files was always the order-item-id , but now they are named legacyorderitemid , so it’s impossible to match the downloaded files to an order.

Anyone else having the same issue?