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Sep Bug Fixes and Known Issues in UNDECEMBER

UNDECEMBER
2025.09.18 목 11:30 (UTC + 9)

Greetings, Rune Hunters.


We would like to share with you the bugs that have been fixed in September, as well as the issues that are currently under investigation.

Please see below for more details.


※ The following may change or be postponed in the future.


◈ Known Issues

※ These are the issues that have currently been found since the update.


- Issue where the additional attribute damage values of skills were not displayed correctly in the character information screen

└ This is a display issue only actual damage is applied correctly.

- Issue where the Claim Reward button does not work after completing the Zodiac Pass Season Mission [Passes purchased for the current Season: 1].

└ You can receive the rewards normally after reconnecting.

- An issue where an error popup intermittently occurs during the first purchase event of Season [Abyss Gate].


Bug Fixes

※ These are the bug fixes that took place with the update.


[ Sept.18 Scheduled Maintenance ]

- Fixed an issue where the message stating that the Abyss Rift could not be created was displayed in certain situations when generating the Abyss Center Portal in content [Abyss Gate].

- Fixed an issue where the event icon was not hidden after receiving the First Purchase Reward.

- Fixed an issue where some non-limited items were incorrectly displayed as time-limited in certain situations.

- Fixed an issue where the Ranking > Standard/Season Unpicked Ranking tab was displayed in duplicate.

- Fixed an issue where the tooltip effect values were incorrectly displayed when depositing [Abyss Stone] in the Storage.

- Fixed an issue in Act.5 Main Quest [Specter of Tria] where the NPC’s position overlapped with the [Forgotten Shrine 1F] waypoint.

- Fixed an issue where the sound effect of Skill Rune [Toxic Mist] was abnormally loud when used.

- Fixed an issue where the Ultimate icon effect was not applied to [Bound Ultimate Unique Gear].

- Fixed an issue where the cooldown of [Enhanced Skills] equipped in the skill slot was abnormally displayed in certain situations.

- Fixed an issue in mobile environments where the amount of Mileage obtained was displayed incorrectly when purchasing Gear Summon 10+1 products.

- Fixed an issue where the related event popup was displayed even on accounts that are not New/Returning accounts.

- Fixed an issue where the Partner Creator Exclusive Title was not applied in Season Mode.

└ If you would like to apply the Partner Creator Exclusive Title in Season Mode, please submit a request through Customer Support 1:1 Inquiry.

Please note that the Title applied in Season Mode will not be displayed in Standard Mode.

- Fixed an issue where the [Damage Amplification when using Movement Skill Runes] option of [Sephdar's Halter] did not function in certain situations.

- Fixed an issue in Act.12 [Near Lighthouse] map where using a Movement Skill in certain areas would cast it in place.

- Fixed an issue where certain sound effects of the new pets [Sylen] and [Violeyn] were abnormally loud.


[ Sept. 16 Server Patch ]

- Fixed the issue where the damage attribute of skills was forcibly converted when equipping [Hamal's Season].

- Fixed the issue where screen stuttering persisted during combat while [Hamal's Season] was equipped.

- Fixed the issue where the Holy-grade options of [Sephdar's Order] and [Acuben's Thunder] only granted Minion/Sentry-related options.

- Fixed the issue where attempting to enter [Abyss Gate] occasionally redirected players to the title screen.


[ Sep. 11 Temporary Maintenance ]

- Fixed an issue where exclusive attendance and product rewards were not displayed despite meeting the Returning Account criteria.

- Fixed the issue where update rewards were not distributed correctly.

- Fixed the issue where the Special Day benefits of the Lucky Ddakji Draw Event were not applied.


[ Sep.4 Scheduled Maintenance ]

- Fixed an issue where the Abyss Rune Knight would not be summoned properly in certain situations when using [Summon Bursting Rune Knight] / [Summon Lightning Rune Knight].

- Fixed an issue where [Vision Shift] consumed Mana but did not function properly in certain situations.

- Fixed an issue where the skill effect of [Firebomb Shot] was abnormally displayed in certain situations.

- Fixed an issue where the [Season's First Purchase Gift] banner was abnormally displayed in certain mobile environments.

- Fixed an issue where [Currency Chest Icons] were abnormally displayed in certain mobile environments.


We hope that the details on known issues will help you avoid any inconvenience as you play the game.


Thank you.




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