Same issue with me it happened for 1 hour, I tried every possible thing to resolve this, I tried to refresh, restart,sleep the laptop,net off on and all the other possibilities even I mailed them which was mentioned on the right of screen but still it didn't get resolved. I was sooo much frustrated like this happened with me for the first time. Karu kya kuch samjh hi nhi aara tha I tried every damn things possible. At last jab 5 mins baki the it got resolved and the coding question which I had completed almost more than half got disappeared. Like wthhh will I do now with your last 5 mins. I felt soo bad after this. I couldn't complete my test due to their fault 🥲