Upload Problems

Check the supported formats, select the correct system, and confirm there is enough account storage. Keep Rebit visible while uploading and retry on a stable connection if it stops.

For disk sets, include every file referenced by the playlist or CUE file. Select MS-DOS for DOS ZIP packages. For an ordinary cartridge ZIP that fails, try the extracted ROM.

Emulator Loading Problems

Reopen the game and wait for loading to finish.
Check the selected system and file format.
Try another available core after backing up progress.
For Amiga, check Kickstart BIOS and disk files.
Try a known working copy if the file may be damaged.

Avoid clearing all browser data as the first step: it may contain pending uploads and local BIOS files.

Slow or Choppy Gameplay

Close busy apps and tabs, keep the game visible, and disable battery saver if it limits performance.
Return fast-forward to normal speed.
Choose the Original shader to reduce graphics work.
For Stream rooms, try Performance Mode when offered and check the host's connection.
For synchronized multiplayer, check both players' performance and connection. A relay cannot fix a device that cannot run the game fast enough.

Volume changes adjust loudness; they are not a general performance fix.

Touch Controls Feel Wrong

Open Controls in the in-game menu and try Static or Dynamic D-pad style. Rotate the device if needed. Use Hide Controls for a hardware controller, or Show Controls to bring touch buttons back.

For keyboard and gamepad mappings, open Settings > Controls. Big Picture has its own navigation controls.

Save Problems

Open Open Saves and check Manual, Auto, and In-game. Confirm you are using the same Rebit account and library game as before.

Save states can depend on the system and emulator core. For portable progress, save inside the game, use Export In-Game Save, and wait for confirmation. Multiplayer modes use their own save restrictions; see Link Cable or Nintendo DS Multiplayer.

Screenshot and Recording Problems

Check account storage if a screenshot fails to upload. Look on the game page or Profile > Media for screenshots.

Record Screen depends on browser or app support and may request screen-sharing permission. Stop the recording and finish its download or export before closing the game. A screen recording is separate from an automatic multiplayer replay.

Cheat Problems

Check that the code matches the exact game and region. Disable cheats that make the game unstable, and restart if necessary. Some cores and multiplayer modes restrict cheat actions.

RetroAchievements Problems

Check the connected account under Settings > Integrations > RetroAchievements. Reconnect with the account password if needed, then reopen a supported game and core. See RetroAchievements.

Netplay Problems

Refresh the Netplay room list and check the Room ID.
Confirm the host is still online and the room has a free seat.
For Lockstep, Rollback, and normal NDS local wireless, use the exact matching ROM.
If P2P cannot connect, recreate a supported room with Edge Link.
Keep every player's app visible and device awake.
If recovery fails, start a new room. Stop trading or saving when a desync is reported.

When reporting a freeze, include the Room ID, approximate time and timezone, game and system, mode and transport, device/browser versions, and whether one player or everyone froze. Include the visible error text and replay link if available. Never include login or upload tokens.

Nintendo DS Cloud Room Problems

NDS Cloud is offline means the old cloud-hosting service is unavailable. Use an available Local Wireless mode from the Nintendo DS Multiplayer guide.

For Local Wireless, use two players, matching game revisions for normal wireless, and the game's own multiplayer menu. Download Play is a separate mode and requires a game that supports it.

Replay or Watch Problems

A Watch button needs a supported active room with spectating available. Saved replay availability is separate. If a replay upload was interrupted, reopen the host's original browser or app, sign in, and leave it online to retry pending uploads.

Do not clear local Rebit data while trying to recover a recording. See Watch and Multiplayer Replays for partial captures and playback errors.

Remote Controller Problems

Use the host's latest QR code or controller link. For LAN, both devices must be on a network that permits direct communication. If it isolates devices, try Internet. Close an old controller session if the slot is already in use.

See Remote Controller.

Pokémon Trainer Profile Problems

Register the exact supported ROM release, then use Update data with a saved In-game file. Save states cannot be analyzed. If your party or badges look old, choose a newer exported save.

See Pokémon Trainer Profiles.

Storage Problems

Open Settings > Storage, back up important files, then remove unwanted games, screenshots, or saves. Local ROM cache cleanup does not free account storage. Check Subscription if a purchased plan is not reflected in your limit.

Install or PWA Problems

Use the Download page for Android, Safari's Share > Add to Home Screen on iPhone/iPad, or a supported desktop browser's install menu. See Installation.

Pro Tips

Keep an exported in-game save before changing cores or entering multiplayer.
Wait for saves and replay uploads before clearing device data.
Start an unfamiliar multiplayer game with a short two-player test.
Review privacy settings before sharing library content or recordings.
Check the Changelog for recent changes.