today, on several occasions problems were loading as a PDF file instead of the usual page. It was happening in the morning, then it disappeared and now it happened again but only once. Is it some bug?

Edit: It's been so long and nothing's fixed. This is too frustrating. You open a problem from problemset, you solve. then go to problemset submit then check the problem index (problem number), write it. you get accepted and then to check editorial solution you click on problemset link and it takes you to pdf again 😭 Now I'll have to search for that contest number which apparently isn't the same as the number in the link and then search for the contest in contest page. What is this? 😭😭😭