In today's contest Codeforces Round 1070 (Div. 2), when I submitted the code for 2176D - Fibonacci Paths, the codeforces website got stuck loading after pressing the submit button and then gave a 404 error, and gave a broken site error after reloading. So, I had m1.codeforces.com open in another tab and submitted the exact same code.

Now, this ended up counting as 2 submissions and my first submission got skipped. Can something be done about this MikeMirzayanov ?

In the attached screenshot it can be seen both the submissions were at the exact same time.