MONGIL Known Issues and Fixes

Where to find official known-issue updates

Netmarble maintains a dedicated known-issue thread on the official MONGIL: STAR DIVE forum at forum.netmarble.com/stardive_gl. This thread is the primary source for bug reports, status updates, and fix timelines. The developers add new issues as they are discovered and mark them as resolved when patches are deployed.

This guide summarizes the most impactful known issues and provides workarounds where available. It is not a replacement for the official thread. Always check the official source for the latest status, especially after a new maintenance or patch.

Known issues are typically added with a timestamp and a brief description. The thread covers gameplay bugs, display issues, UI problems, and progression blockers. Some issues are specific to the PC Launcher, while others affect all platforms.

Current known issues (as of August 2026)

The following issues are listed on the official known-issue tracker. Each entry includes the date it was added and a brief description of the problem.

PC Launcher display issue (added July 15, 2026): An issue where the screen is not displayed properly after updating the PC Launcher. This affects players who updated the launcher and then experienced visual glitches, blank screens, or incorrect resolution. The issue is specific to the PC client and does not affect mobile players.

Skill Path Stage IV progression blocker (added July 27, 2026): An issue where players are unable to properly proceed after entering certain Stage IV Skill Paths under specific conditions. This can block skill upgrades for affected characters. The conditions that trigger this issue are not fully documented, but it appears to be related to specific Skill Path stages under particular account states.

Monsterling Fusion trait display bug (added after July 28 maintenance): An issue where, during Monsterling Fusion, if there are multiple unlocked Traits of the same grade, only one Trait is displayed in the Trait Material Probability Information UI. This is a display-only bug. The actual Fusion mechanics still account for all unlocked traits, so you can proceed with Fusion safely. The UI just does not show all available traits in the probability breakdown.

PC Launcher display fix

The PC Launcher display issue was the first major known issue added to the tracker after the global release. It affects the visual output of the game after a launcher update, causing the screen to render incorrectly or not at all.

If you experience this issue, try the following steps in order. First, close the game and the launcher completely, then relaunch both. If that does not work, check your display settings in the launcher and make sure they match your monitors native resolution. If the problem persists, try reinstalling the launcher from the official Netmarble site.

This issue does not affect your account data or progress. It is purely a display problem with the PC client. Mobile players are not affected.

1. Close the MONGIL game client and the Netmarble Launcher completely.
2. Relaunch the launcher and check your display resolution settings.
3. Start the game and see if the display issue is resolved.
4. If the problem persists, uninstall and reinstall the launcher from the official Netmarble PC play page.
5. Check the official known-issue thread for any new patches or workarounds.

Skill Path progression blocker workaround

The Skill Path Stage IV progression blocker is one of the more impactful known issues because it can prevent you from upgrading your characters skills. If you encounter this issue, you are stuck in a specific Skill Path stage and cannot move forward.

The issue affects certain Stage IV Skill Paths under specific conditions. The exact trigger conditions are not fully documented by Netmarble, but the issue has been acknowledged and is being tracked.

As a workaround, try entering a different Skill Path stage or a different characters Skill Path. If the issue is specific to one stage, switching to another may let you continue progressing. You can also try restarting the game client and re-entering the affected stage.

If none of these workarounds resolve the issue, report it on the official forum thread with your account details, the affected Skill Path stage, and any error messages you see. Netmarble uses these reports to reproduce and fix the bug.

1. Note which Skill Path stage and character is affected.
2. Try entering a different Skill Path stage for the same character.
3. Try entering a Skill Path for a different character.
4. Restart the game client and re-enter the affected stage.
5. If the issue persists, post a report on the official known-issue thread with your account details.

Monsterling Fusion trait display: what you need to know

The Monsterling Fusion trait display bug is a UI issue, not a gameplay bug. When you have multiple unlocked traits of the same grade on a Monsterling, the Fusion UI only shows one of them in the Trait Material Probability Information panel. This can be confusing because it makes it look like you only have one trait available for Fusion.

The important thing to know is that the actual Fusion mechanics still work correctly. All unlocked traits are accounted for when the Fusion result is calculated. The display bug only affects the probability breakdown shown in the UI. You can proceed with Fusion safely.

If you want to verify which traits are available before Fusion, check the Monsterling detail screen outside of the Fusion interface. The detail screen shows all unlocked traits correctly. Use this to confirm your traits before starting a Fusion.

Netmarble added this issue to the tracker after the July 28 maintenance. A fix is expected in a future patch. Until then, use the Monsterling detail screen as a workaround for verifying trait availability.

How to report a new bug

If you encounter a bug that is not listed on the official known-issue thread, report it through the proper channels. The most effective way is to post on the official MONGIL forum with a clear description of the issue, the steps to reproduce it, and any relevant account or platform information.

Include the following in your report: your platform (PC, iOS, Android), the game version shown in the settings screen, the exact steps that led to the bug, and any error messages or screenshots you can capture. The more detail you provide, the faster Netmarble can reproduce and fix the issue.

Do not report bugs through unofficial channels like social media comments or third-party forums. While community discussion is valuable, official bug reports need to go through the official forum or in-game support system to be tracked and addressed.

After reporting, check the known-issue thread regularly for updates. Netmarble typically adds acknowledged issues within hours of confirmation and marks them as resolved after the fix is deployed in a maintenance patch.

1. Open the official MONGIL forum at forum.netmarble.com/stardive_gl.
2. Find the known-issue thread or the bug report section.
3. Describe the bug clearly: what happened, what you expected, and what you saw instead.
4. Include your platform, game version, and steps to reproduce.
5. Attach screenshots or video if possible.
6. Check back regularly for status updates on your report.

Keeping up with fixes and patches

MONGIL receives regular maintenance patches that address known issues. Major patches typically include fixes for the most impactful bugs, while smaller hotfixes may address urgent issues between scheduled maintenance windows.

To stay informed, bookmark the official known-issue thread and check it after every maintenance. Netmarble posts update notes on the forum and in the game client. The Version 1.2 update, for example, included fixes for previous issues while introducing new systems that brought their own bugs.

This guide is updated regularly to reflect the current state of known issues. Check back after major patches to see what has been fixed and what new issues have been discovered. The official forum thread remains the authoritative source for the latest status.

Frequently asked questions