Yesterday I participated in Codeforces LATOKEN Round 1 (Div. 1 + Div. 2) and passed pretests on problems A, B, C, D, E during the contest. However, my solutions were not further evaluated on the main tests and they are still being displayed with "Pretests passed" in the submissions tab and as unsolved in the standings. This resulted in a delta of -302 :(.
I have never seen this before and I don't know what could have caused it. Does anybody know what went wrong or is it a bug? I'll also ping MikeMirzayanov, asking for help.
Sorry for writing an unuseful post but I don't know where else I should ask.