TI-API: A customer order creates two TI-sales order numbers in the TI system via the API, but only one sales order number is passed back to the customer order. The second sales order number is not visible in the customer's system.

Part Number: TI-API
Our order PO202506160015 has a total of 56 lines. When creating TI orders through the API, two separate orders were created, with rows 1-50 in TI sales order 1028145837 and rows 51-56 in TI sales order 1028145853.  —— At that time, I didn't know it was divided into two TI orders
Meanwhile, due to network issues, the order PO202506160015 was created twice (so,add new order:1028145924+1028145925).  ——At that time, I didn't know it was divided into two TI orders again.
That is to say, there are a total of four TI orders in existence.
At this time, I wanted to cancel the second duplicate order (1028145924+1028145925  in TI system), so I cancelled all 56 lines of the order were together in our system.
Dut to only 1028145837 and 1028145924 are visible in our system, only 1028145924 through the API was cancelled in TI system.
Because TI orders 1028145853 and 1028145925 are not visible in our system, so 1028145925  were not cancelled together with 1028145924. 
In our system, the original order PO202506160015 corresponds to 1028145837, and there is no other TI order number prompt on lines 51-56.
When I modified the CRD to submit changes, lines 51-56 were returned by the API with a quantity of 0 and prompted: ERROR:PO Item is not present on the order. Action should be Insert (I); —— At that time, I find it was divided into two TI orders, and there is still a third order 1028145925 here.
I want to know why a customer order creates two TI orders? And I want to cancels the current abnormal order (1028145853、1028145925).