You know how sometimes one gets impatient with the animation? Well, still do not click too fast.
One bug occurs when you have multiple sundials/golden hourglasses, and try to activate them in quick succession. Some of the cards do not appear, and are all intents invisible. However, they still apparently count towards your hand limit and exist. You can be asked to discard cards that you cannot see. They will just appear as a border. Furthermore, that sundial/golden hourglass that bugged out is staying bugged for the rest of the game - i.e any cards produced from its 'hasten' ability cannot be seen.
The second more serious bug is at your "manage card" screen. When you remove/add cards too fast, sometimes the cards will have names of other cards. Sometimes when you refresh all will be fine. Today, I have discovered to my horror that the cards can be replaced apparently.
My shards were replaced this way.
Questions & Answers:
Q: Could it have been that you sold your shards?
A: No. Firstly I still had <1100 gold, so I could not have sold it off. All my shards were upgraded.
Q: Do they appear when you refresh/relogin?
A: No. They are gone permanently. Interesting thing is, the first time I tried to relogin, the message was that "You have been banned". Apparently, the game detected some inconsistency. Subsequent relogins, there was a rollback at least and I could login.
I know this forum is not by zanzarino and I Have sent bug report. Just posting this to warn all of you.