The Apocalymon Wall Dungeon is one of the most rewarding pieces of endgame content in Digimon UP, offering valuable progression materials and challenging battles for players looking to strengthen their teams. However, many players have been unable to enter the dungeon due to a loading or matchmaking bug that prevents the dungeon from launching, making it impossible to claim its rewards.
Fortunately, there are a few solutions that have helped many players bypass this issue. If you’re unable to access the dungeon, clearing the game’s cache is often the quickest and most effective fix before trying more drastic measures like reinstalling the game. This guide explains how to enter the Apocalymon Wall Dungeon in Digimon UP, what to do if you’re affected by the joining bug, and the best troubleshooting steps to get back into the fight.
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How to Fix the Apocalymon Wall Dungeon Bug in Digimon UP
In Digimon UP, joining the Apocalymon Dungeon is one of the primary sources of DigiPlates you can find in the game, so it’s critical to increase your SP Support Digimon Base level, unlocking more combat companions that aid you in battle.
The problem is that most players are experiencing the “joining Bug” or “Matchmaking Bug” which freezes the screen when players try to join.
The first possible fix is to click on the “Attempt” button, then wait for about 2 minutes without touching the screen so the game loads.
If this doesn’t work, you can also hold the button for about 20 to 35 seconds to see if it works.
If the problem persists, try to clear the Cache. You can do so by following these steps:
Return to the Digimon UP Loading Menu
Click on the “Menu” icon on the bottom right corner.
When the new tab opens, select Clear Cache
Select “Yes” (don’t worry, this won’t delete your progress)
Wait for the process to finish, then reload the game
The game will re-download critical files
Join the game and see if the problem has been fixed
If the problem persists, then you should try a total reset by uninstalling the App and re-downloading it from the App Store. Sometimes, this is the only choice remaining since the files might have been corrupted and cannot be fixed by simply clearing the cache.
As the save files are stored on the server and are associated with your e-mail account, it means you won’t be losing any progress with this method either.
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Is The Apocalymon Wall Bug Fixed?
Image via Bandai Namco
Maintenance was scheduled for July 22, 2026, and the devs stated that their priority would be to fix this bug preventing some players from joining the Apocalymon Wall Dungeon properly.
If you are still experiencing issues, try the Delete Cache trick or Re-Download the App to avoid any further complications. If the problem persists, you should write down a ticket from the Support Page of Digimon UP, as there’s a chance the issue might become a permanent obstacle for your progression and should be fixed as soon as possible.
