The skull loss bug that was around for a week or so is fixed, and also the useful items later in the game can now be gotten in all difficulties and from all chests.
This is the best idle/clicker game I've ever played. Sure, at first, it's a lot of clicking, but there's more and more to it as time goes on, and your best bet is the idle DPS of non-tap creatures. Stick with it, because things get interesting.
My advice to anyone who plays and encounters any bugs or errors that upset them, is to just deal with it and wait it out, because the dev's are also streamers on Twitch and constantly update the game and solve major issues as soon as possible. They also have intentions of adding a lot more to the game over time.
Eventually, according to Kojakts, you will be able to use one account cross-platform eventually, so if you're playing on Newgrounds, down the road you may also be able to play your same game on Mobile as well, when away from home. I personally can't wait.
I've been playing this same idle game for almost two months now. Don't fret the small stuff, check out the live streams for the devs and tell them yourself if there's something broken or annoying, it is likely someone else already beat you to it, but it doesn't hurt.
Good luck and have fun playing everyone!