btw, when I tried to upload my concept sheet (2048px) it reduced to 1638px X 1638 px. The rule is we must collect our concept sheet exactly in 2048 px. So if the size reduced, it looks like i dont follow the rule.
Does anybody meet the same problem with me?? Back to several weeks ago, in my experience, when i tried to upload my progresses, there was no problem, all exactly in the same size.