Def Jam Recomp troubleshooting

Symptoms matched to fixes from the release notes and guides, the known issues of the current release, and the reports still open.

  • 20 fixes
  • 15 open PC reports
  • Updated for v1.1.1
A rain-wet playground court behind a chain-link fence, with an elevated train line to the left
A fenced playground court, Queens
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Many problems reported on the trackers have been fixed in a later release, so the first step is always to update to PC v1.1.1 or Android v1.4-FG. The table maps symptoms to the README, the install and input guides and the release notes.

Common errors and fixes

SymptomCause and fix
“Windows protected your PC” (SmartScreen)The app is not code-signed yet. Check the SHA-256 on the download page, then More info → Run anyway.
macOS says the app cannot be openedChoose Done (not Move to Trash), then System Settings → Privacy & Security → Open Anyway. Once only.
Update or repair stops with “Access is denied” on WindowsFixed in v1.1.1 (#207). If an old shortcut still blocks it, close the app and any background DefJamLauncher.exe, open DefJamRecompiled.exe directly and choose Repair / Update game.
The app refuses my copyOnly the USA Xbox release in the supported dump manifest works; PS2 and GameCube copies cannot. Drop your default.xbe into the SHA-256 checker to see whether it is the supported one.
Setup says there is not enough spaceIt needs about 12 GiB working space plus your copy and 1 GiB (up to 15 GiB more for textures). Free space or Change locations, then Recheck space.
Setup cannot build on WindowsMicrosoft’s C++ Build Tools are missing: tick the offer to install them in the last setup step, and allow the Windows prompt.
Linux or Steam Deck never offers an updateInstalls from 1.0.0 or the v0.13.0 Linux setup look for old file names. Download the current AppImage once and open it.
A gamepad is not seenLook for [INPUT] … pad(s) found in logs/run-*.log.err; close Steam’s controller layer, which can hide pads.
The keyboard is an extra controllerSet keyboard_player = off, or merge into player 1.
No rumbleIf the pad does not buzz on connect, try backend = xinput or another cable; if it does, raise rumble_floor and rumble_min_ms.
Stick driftRaise left_deadzone / right_deadzone.
Fights judder like 30 fpsFixed in 0.12.3 (#140). Update.
Crackling soundFixed in 0.9.3 (#30). Update.
Widescreen menus flash black side barsFixed in 1.0.0 (#141): the texture memory setting reaches the game again (2048 MiB by default).
Combo call-out splits apart in widescreenFixed in 1.0.0 (#196).
Original Xbox saves show “Damaged game”Imported profiles were rejected by the save signature check; closed on the tracker (#154). Update to the newest release.
The disk keeps filling upEach Update or Repair keeps another ~600 MB build in the install folder (open, #180).
Android: “default.xbe not found”The extracted disc must sit in Internal storage/DefJamFFNY/game/ with default.xbe directly inside, and the app needs storage permission.
Android: black screen with soundTry the launcher’s Fix Mali / PowerVR options, then the hakuX mode (v1.4). Black screens on Helio G25 and P22 are still open (#21, #22).
Android: online lobby rejects the clientOpen (#19): the outside server may require a newer client. Online is not guaranteed.

Known issues in v1.1.1

  • The Story Learn Moves list draws grey and light bars behind its rows (#181), which may or may not match the console.
  • When the Story map pans to the gym or the barber, the Shop District heading can sit behind MAP or move off the top.
  • Memory growth over long sessions is under investigation (#166), as are plain fight replays that differ on the Steam Deck (#98).
  • Each Update or Repair keeps another ~600 MB build (#180).
  • Network multiplayer is not supported; frame rates above 60 fps are future work.

Open PC reports

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Issues open on github.com/vyanhursky/DefJamFFNY-recomp/issues among the most recent on November 9, 2026 (21 open issues and pull requests in total). Several are the maintainer’s own work items. If yours matches, add to it instead of opening a new one.

IssueTitleOpened
#189Windows setup: build without Microsoft's Build Tools (toolchain spike)November 5, 2026
#188Setup: say what a wrong dump file is, and what to do, as soon as it is chosenNovember 5, 2026
#187Setup: cache compiled files (ccache) so updates, repairs and retries rebuild only what changedNovember 5, 2026
#181Learn Moves: move rows now draw grey/light background bars (story-tour 13s/23s baselines differ)November 4, 2026
#180Reduce disk space used by the game install, data folder and HD texturesNovember 4, 2026
#178Brazilian Portuguese pack: which PS2 translation does language-packs.md mean, and who is the author?November 3, 2026
#175test(reports): record the compiler/toolchain used for the tested buildNovember 3, 2026
#173test(scenarios): report existing identity checks and final menu transitionNovember 3, 2026
#172test(harness): validate the intended Story profile before running routesNovember 3, 2026
#169Music modificationsNovember 2, 2026
#167very difficult to updateNovember 1, 2026
#166Investigate cross-platform regression memory-growth limits and HD scene-transition allocationsNovember 1, 2026
#165My Controller PC Ucom controller doesn't work in-game, yet the game detects it.November 1, 2026
#157quiver setup box for the def jam gameOctober 31, 2026
#120Add "Quick Rematch" capability to pause menu or key bindingOctober 26, 2026

How to report a problem well

  1. Update to the newest release and try once more.
  2. Note your version, system, CPU/GPU and controller, and the exact steps.
  3. Copy the relevant log lines (setup log or logs/), with personal paths removed.
  4. Open an issue with the form at github.com/vyanhursky/DefJamFFNY-recomp/issues/new/choose, or at github.com/contatg/Def-Jam-Android-Native-Port/issues for the Android port.

Never attach game files, saves, memory dumps or F9 bug bundles, and do not ask for game files on the trackers.

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A lit subway train crossing an overpass above a street at night in the Bronx
Morris Park, the Bronx, at night
The Brooklyn Bridge lit up at night, seen from the water’s edge with old pier posts in front
The Brooklyn Bridge at night
Two boxers sparring in a ring inside a gym while coaches and fighters watch
Sparring in a boxing ring

Frequently asked questions

What do I attach to a Def Jam Recomp bug report?

Your version, operating system, CPU and GPU, controller, the steps to reproduce and the relevant log lines, with personal paths removed. The project asks you not to attach F9 bug bundles, game files, saves or memory dumps. For setup problems, include the setup log (Open log).

Where are the logs?

Use Open Logs on the app’s Home screen, or Maintenance → Copy path. Input problems are written to logs/run-*.log.err. On Android the log is DefJamFFNY/defjam-native.log, replaced on each launch, so copy it right after a failure.

How do I rebuild the game from scratch?

Help → Repair or rebuild. Rebuild builds the game again from nothing; saves and settings are kept.

Will updating break my saves or mods?

No. Update game rebuilds from your copy and keeps saves, settings and mods, and the previous build stays playable until the new one is ready. Saves made with 1.1.0 stay readable by earlier versions and the original game.

Where do I ask for help?

Bugs go to the GitHub issue tracker of the project concerned. The PC project also has a Discord for conversation and setup help, linked from its README; never share game files or dumps there.