Why is the 1s exchange with the site interrupted?

Question

1C-Bitrix

Tell me please. Faced such a problem.
The exchange of orders between the site for Bitrix and 1s UT 10.3 is configured.
A regulated exchange is enabled every two minutes.
When there are no orders, everything is correct in the log:

10/31/2017 17:57:17--____________________________________________________________________________
10/31/2017 17:57:17--Start of node exchange Document exchange with the site
10/31/2017 17:57:17-- Directory on disk: C:\Users\*** *\AppData\Local\Temp\3 295 937 690\webdata\000000002
10/31/2017 17:57:17--Loading information on documents.
10/31/2017 17:57:17--Sending an authorization request.
10/31/2017 17:57:17--Sending an initialization request to determine the data exchange version.
10/31/2017 17:57:17--Sending a request to receive orders from the site. 10/31/2017
17:57:17--No documents to process
10/31/2017 17:57:18--Downloading information on documents is COMPLETED
on 10/31/2017 17:57:18--Uploading unsent packages about information on documents.
10/31/2017 17:57:18--Uploading document packages in XML.
10/31/2017 17:57:18--Upload of document packages in XML is completed.
10/31/2017 17:57:18--Uploading unsent packages about information on documents COMPLETED
10/31/2017 17:57:18--Uploading information on documents.
10/31/2017 17:57:18--Building packages for documents
10/31/2017 17:57:18--Building packages for documents completed
10/31/2017 17:57:18--Uploading document packages to XML.
10/31/2017 17:57:18--Upload of document packages in XML is completed.
10/31/2017 17:57:18--Uploading information on documents COMPLETED
10/31/2017 17:57:18--Uploading the current log file to the site.
10/31/2017 17:57:18--Sending an authorization request.
10/31/2017 17:57:18--Completion of the exchange Exchange of documents with the site
10/31/2017 17:57:18--____________________________________________________________________________

As soon as an order appears on the site, the exchange is interrupted:

10/31/2017 17:59:17--____________________________________________________________________________
10/31/2017 17:59:17--Start of node exchange Document exchange with the site
10/31/2017 17:59:17-- Directory on disk: C:\Users\*** *\AppData\Local\Temp\3 623 686 536\webdata\000000002
10/31/2017 17:59:17--Loading information on documents.
10/31/2017 17:59:17--Sending an authorization request.
10/31/2017 17:59:17--Sending an initialization request to determine the data exchange version.
10/31/2017 17:59:18--Sending a request to receive orders from the site.
10/31/2017 17:59:27--______________________________________________________________________________
10/31/2017 17:59:27--Start of node exchange Exchange of documents with the site
10/31/2017 17:59:27-- Directory on disk: C:\Users\***\AppData\Local\Temp\3 208 667 089\webdata\000000002
10/31/2017 17:59:27--Loading information by documents.
10/31/2017 17:59:27--Sending an authorization request.
10/31/2017 17:59:27--Sending an initialization request to determine the data exchange version.
10/31/2017 17:59:27--Sending a request to receive orders from the site.
31.10.2017 17:59:37--____________________________________________________________________________

What could be the problem?

Answer 1

It was not possible to determine what the problem was. Those. Bitrix support couldn't help either.
It turned out one more feature that the exchange worked incorrectly only on the client-server version. On the file version of the database, the exchange worked in the normal mode.
We got out in this situation by transferring all routine tasks related to the exchange with the site to the windows scheduler .

Answer 2

We turn on the debugger in 1C, we look at what prevents us from loading Orders.
Probably, either the structure of the order has been changed, or the type of props.