I've noticed this issue a lot. When I solve some problems in a gym contest (without coach mode), open the coach mode and then view any submission in the contest, all my solutions disappear from standings, status and from my submissions. And I have to open the coach mode to find them in the standings. Also the problems are marked as unsolved (They are not green anymore) and this particularly is really annoying.
Did anybody notice this issue before? And is it a bug or this is intended to happen? I hope it's a bug :D