Changes the office of the new Mail independently

Good afternoon. It is necessary at the initial stages to display a block with new mail and select the sender there immediately, before sending the order, then in theory everything will be ok. As far as I can see, the default sender is now selected, i.e. it was not changed

the default sender changes 1-2 times a month, now it is Timofey NP, but at the time of the creation of the TTN, it approximately creates Timofey NP and changes to Dima NP, in this order it was like that, faith was orders where the sender was indicated Svetlana NP and changed to Dima NP. the sender is set by default, but depending on the product, its managers then change it on their own, and when the TTN is formed for the specified sender, it changes to Dima NP with the process, and the TTN is created correctly for the specified one, but when it changes the sender, it is no longer possible to print the TTN, you need change the one from whom he created. there was a problem with changing the sender by the system on its own after generating the TTN already to the correct sender

Can you show it on video so I can understand exactly what you are doing and try to repeat it? Those. show that the sender is X in the block, then you create a TTN and the sender changes to Y

out of 40 orders, 4-10 such passes. Yesterday I met managers often, today less often. we cannot cause a problem or understand the cause, everything is as we did before. on the status of the NP, we form the TTN manually, it is formed, we go to the status to generate SMS from the TTN and it changes the sender at about this moment. It's hard to catch, even though it's not often. I set the task to carry out orders in a row in bulk and make screen recordings, maybe we’ll catch

If you don’t catch it today, just send a record of the manager’s standard actions so that I understand where to look and where to dig. Thank you.

managers say what changes at the stage of SMS formation
https://photo-screen.ru/i/5x1BYS38o
at the Generate SMS stage, a TTN is created manually and it changes the cabinet, there was NP Timofey
https://photo-screen.ru/i/IGuV1DLET

here are the orders where it changed again
https://photo-screen.ru/i/OB92e47hP
we can’t keep them unchanged, we change it manually again to what it was and move on, but the problem repeats

another example of changing the office of the NP independently by the system after the formation of the TTN https://photo-screen.ru/i/5LyjKMkEP