It isn't a bad decision to change the proper fraction into an improper one after you go beyond the maximum mana points. The automatic gathering of the mana potions scared me until numbers went up although I was capped at the maximum mana points. I ended up having 560/500 mana points at one time. It's good to mouse over the stuff that you want to collect it.
Iiry Soft, you did a good job of keeping the gems turned on their sides although a spell causes them to move back to their original position. I can tell whether an enemy manages to touch the gem although I kill them in the caves.
In addition to what ElemantalBrain said on March 20, 2015, I like the right border that shows you whether you have enough gold for an upgrade or a promotion.
It's challenging because it's hard to keep the plane steady. This only results in extra time to beat the levels. I can fly the plane through certain blocks. I even made it disappear offscreen, but I can't make it reappear onscreen. I just had to restart the level.
One team member went missing after I went to Lava Lake. I had to reload the page to get the Rogue back. A trade-off is that I don't hear the music. Those who complain about the wizards are on to something. I stopped encountering game-stopping problems since I replaced him with another team member. What's with the music? I sometimes stop hearing it although I turned it up to maximum volume.
The glitch you faced will be fixed soon. Thank You for reporting it.