Mulligan Bug?

Two questions:
1. I haven't tried with version 1.5.35 yet, so I'm not sure if this issue has been fixed yet, but there seems to be an issue with anytime I mulligan, there's a chance that when I draw a new hand, one of the cards in the new hand is face-down with no way to see what it is. I can't look at it and there's no way to see what it is unless I keep the hand and try playing the card. After that, even if I can't play it because I don't have the mana requirements, it flips over and I can see what it is. I'm not 100% positive, but there seems to be a correlation between this happening and the card that's flipped over having been in the previous hand that I mulliganed.
2. Is there a forum that I should post bug reports in? I can't seem to find an appropriate place to post bug reports, so I'll just be posting them in the faq forum until told otherwise.
1. I haven't tried with version 1.5.35 yet, so I'm not sure if this issue has been fixed yet, but there seems to be an issue with anytime I mulligan, there's a chance that when I draw a new hand, one of the cards in the new hand is face-down with no way to see what it is. I can't look at it and there's no way to see what it is unless I keep the hand and try playing the card. After that, even if I can't play it because I don't have the mana requirements, it flips over and I can see what it is. I'm not 100% positive, but there seems to be a correlation between this happening and the card that's flipped over having been in the previous hand that I mulliganed.
2. Is there a forum that I should post bug reports in? I can't seem to find an appropriate place to post bug reports, so I'll just be posting them in the faq forum until told otherwise.