Diablo 3 quality assurance Tsarnis posts one list of known issue for current 2.1.0 build on the official forum. Here is the original post:

"Hello everyone, and welcome to the Patch 2.1.0 Public Test Realm! Below you will find the Known Issues list for our current 2.1.0 build. Please do not report bugs that you see on this list, as we already know about them, and help out other players reporting bugs by referring them to this list.

As a reminder, this list will not list every bug that is active in the 2.1.0 patch. What it is listed here are a select few issues -- chosen due to visibility and impact -- that are active and confirmed as bugs by Quality Assurance with verifiable steps and (in most cases) an expected fix. Just because a bug is not on this list does not mean we don't know about it! In addition, potential exploits and the like will never be listed here.

Please note that documented bugs may not always be fixed in the order in which they were reported. In some cases, we may not have a timeline for a when a bug will be fixed and some bugs may not be able to be fixed at all. If we are able to verify that a documented bug cannot be fixed, it will be removed from this list.

Thank you for your continued reports, and enjoy Diablo III!!!

Achievements

•Achievements associated with Greed are not currently being awarded when the criteria is met
•The “Beating a Dead Death” and “The Demon Butcher” achievements are currently not tracking the correct monsters for completion credit

Combat

•Channeled Wizard skills currently cost an extra tick of their channeling cost upon initial cast

Greater Rifts
•Greater Rift bonus objective text remains in the quest tracker after the rift quest has been completed
•After opening a Realm of Trials, the obelisk portal in other town hubs will lead to a Rift rather than the Realm of Trials
•The health and damage of monsters within the Realm of Trials currently scales with game difficulty

Items

•Legendary Gems that have been socketed into an item do not display their current rank
•Hellfire Amulet – Amulets with the Wizard passive “Dominance” are not properly granting the passive skill to the player when the amulet is equipped
•Fire damage from pets does not currently apply the Firebirds Finery 6-piece set bonus effect

Seasons

•The New Season announcement UI has multiple placeholder and missing pieces of art
•Players aren't being correctly placed on the Conquest Leaderboard for the Speed Racer Conquest"

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