Mission of gold skin of Mume disappear

Product: Battlefield V
Platform:PC
Please specify your platform model. PC
AMD or Nvidia Model Number 970
Enter RAM memory size in GB 8
Which part of the game is the issue happening in? Multiplayer
Which part of the mode? Conquest
Please select your region Asia
On which server did this happen? didn't remember
When did this happen? (dd.mm.yy hh:mm) didn't remember
Summarize your bug Greetings,I lost my connection to the server and at that time my Sume submachine gun reached level 10.But after i again played the game.The duty to have the gold skin didn't appear.Could you please get it for me?I beg you
How often does the bug occur? Rarely (0% - 9%)
Steps: How can we find the bug ourselves? Maybe just give me the mission
What happens when the bug occurs? lost the connection to the server
What should be happening instead? my mission appear

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Greetings,I lost my connection to the server and at that time my Sume submachine gun reached level 10.But after i again played the game.The duty to have the gold skin didn't appear.Could you please get it for me?I beg you