MapleStory MGLB🛠️2026.05.20/21 Update Known Issue Notice (As of 2026.06.18)

Summary
“🛠️2026.05.20/21 Update Known Issue Notice (As of 2026.06.18)” is an official patch note from MapleStory M Official News on 2026-05-21. Its canonical Nexon thread and publication metadata are retained for source-backed verification.
Article body
This is the list of known issues for 2026 05.20/21 update, including bugs/errors.
Please be mindful of this when playing the game.
We are currently working to fix these problems as soon as possible and will update the list once they have been solved.
(2026.05.21)
1. (Fixed 06.18) An issue where certain choice options are displayed abnormally when replaying some quests
2. (Fixed 06.18) An issue where attempting to navigate to the previous step of a quest in the Quest UI does not function properly for certain quests
3. (Fixed 06.18) An issue where the detailed sources of stats are intermittently not displayed in the Character Stats window
4. (Fixed 05.21) An issue where certain skills that cannot be registered are abnormally displayed when configuring Buff Presets on Aran and Shade characters created prior to the 05.21 Update
5. (Fixed 05.22) An issue where the dice appear smaller than intended when using the Pirate class skill 'Loaded Dice'
(2026.05.22)
1. (Fixed 05.22) An issue where the efficiency of the HEXA Mastery skill is applied lower prior to reaching Skill Level 7 after learning Kain's 'HEXA Falling Dust' skill.
2. (Fixed 05.22) An issue where learning Kain's 'HEXA Poison Needle', Shade's 'HEXA Spirit Claw', and Aran's 'HEXA Beyond Blade' results in a normal increase in total damage, but the base damage % of the skill itself starts lower than that of the base skill.
(2026.05.26)
1. (Fixed 06.18) An issue where the designated character cannot be deleted even after the burning period has ended when using a time-limited Tera Burninator.
More from this series
This Upcoming Updates entry belongs to MapleStory M. Related pages below keep this series separate from other MapleStory games.
Source and verification
MPStorys shows the readable on-site body above. The source page remains attached only as a citation and update trail.
MapleStory M Official News