[2020] Is this patch only have bugs?

I am very sorry about the bugs you’re experiencing. 0.7.7 is one of our largest updates, and unfortunately we did not find every issue before the release.

However, I hope you’ll like to hear that the Beastmaster bug (caused by Entangling Roots) and the Arena bug will be fixed in 0.7.7c, and the quest bug (assuming you mean the Sapphire Tablet quest) was fixed in 0.7.7b already. We’re still looking into graphical bugs; we need more information still.