Codeforces allows us to create mashups, and run it as a contest. I noticed a problem in it. If you solve and get AC on any problem in a mashup contest, it won't be reflected in the problem page in the contest from which it was taken. For example, if you solve Problem A from Round 410 in a mashup, and then go to the Round 410's problem A page, it will be shown as unsolved.

Is this a bug? Or was it intended to be like this? (which doesn't make much sense). Or do I have to wait for a certain amount of time for the change to take place?

If this is a bug, please correct this codeforces! Thanks!