COM Weekly Assignments LOST/ DISAPPEARED Automatically

As shown in my screenshot, there are only 6 weekly assignments. Before that login, there were originally 10 weekly assignments in the list. Some are completely finished but not claimed yet.

Because of this serious bug, I've lost over 30,000 plumbob points from lost assignments and down my rank from medium prize to small prize. 

I can neglect all kinds of bug and error but this can't be happened. COM is all about for me. Hope this error will be never found again. 🙏🏻