Troubleshooting
Marvel Rivals Mods Not Working: Fix It in Order
Marvel Rivals mods not working almost always comes down to one of seven things, and the first one accounts for most of them. Work down this list in order and stop when the mod appears in game. Each cause below has a check you can do in under a minute before you commit to a fix.
The frustrating part of this problem is that Marvel Rivals gives you no error. A mod that is not loading looks identical to a mod that is loading and doing nothing visible. That is why guessing is expensive here, and why the order below matters: the causes are ranked by how often they turn out to be the answer, not by how interesting they are. For how the pieces actually fit together, read the Marvel Rivals Mod Manager guide alongside this page.
Why your Marvel Rivals mods are not working
Match your symptom to the row that fits. The sections after the table cover each cause properly.
| Symptom | Likely cause | Fix |
|---|---|---|
| Every mod does nothing, no error anywhere | Signature bypass missing | Install it from the gold banner in the Mod Manager |
| Worked yesterday, dead after a patch | The update overwrote the game's Binaries folder | Reinstall the bypass, then re-check the tab |
| The mod has no row in the list at all | Files are not under ~mods | Move them in, or use Import |
| One mod works, the other one does not | Both replace the same asset | Open View details on the red banner, disable one |
| The row's switch refuses to move | A stale disabled copy beside the live one | Click Remove stale copy on that row |
| Everything is off and you did not do it | Disable All Mods was used | Tick the rows you want and press Enable in the bulk bar |
| Game crashes at launch or on a hero pick | The mod was built for an older patch | Switch that mod off, then delete it |
The signature bypass is missing
This is the number one cause and it is worth ruling out before you touch
anything else. Marvel Rivals will not load an unsigned mod pak unless
the signature bypass is in place. Without it the game does not warn you,
does not log anything you can see, and does not refuse to start. It
ignores every pak in ~mods, so a folder full of correctly
installed mods produces exactly nothing.
The check takes one look. Open the Mod Manager tab in the RIVALSFPS.GG app and look for a gold banner
above the list saying your mods cannot load without the Signature
Bypass. If it is there, hit Install it and the app writes the
bypass into the game's Binaries\Win64 folder for you.
There is nothing to download. Windows may ask for permission to
write there, which is expected. The bypass is DeathChaos's work,
redistributed with permission. If there is no banner, the bypass is
already installed and the cause is further down this page.
Every row you see there is read straight from the game's ~mods folder. Nothing was moved or renamed to put it in
that list, which is what makes the tab useful as a diagnostic: what the
list shows is what the game folder contains.
The files are not where the game looks
Mods load from the game's pak tree, at MarvelGame\Marvel\Content\Paks\~mods. Subfolders inside ~mods mount fine, so a mod in its own folder is normal and
not a problem. Three things do break it:
- Still in an archive. A
.zip,.7zor.rarsitting in the folder is not a mod. Feed the archive to Import instead, which takes.pak,.ucas,.utoc,.zip,.7zand.rar, and extracts the archive for you. - Only part of the mod got copied. Many mods ship three
files with the same name:
.pak,.ucasand.utoc. Copy the.pakon its own and it will not load. A complete three-file mod reads as "Mod (3 files)" in the row meta, so a row saying "1 file" on a mod that should have three is your answer. - A disabled marker is still on the name. A file ending
.pak.offor.pak.disabledis a switched-off mod, and that is true whether the app or another manager wrote the marker. The Mod Manager reads both and shows the row with its switch off, so flip it on rather than renaming by hand.
Use Open Mods Folder in the toolbar to jump straight to the folder the app is reading, and the Refresh icon button beside Tools after you move anything in there.
A game update reset something
Patches are the most common reason mods that worked last week are dead
today. The bypass lives in the game's Binaries\Win64
folder, and a patch that rewrites those files takes it with it. Your
mods are untouched. They are still in ~mods, still switched
on, and still listed in the tab. Nothing loads them.
Make the post-patch routine two checks. Open the Mod Manager and look for the gold bypass banner, then look at the row count in the heading, which reads as something like "(3/4 active)". If the bypass banner is back, reinstall it. If the count is right and the banner is gone, the patch was not the problem. The same check applies to your graphic packs, skins and sound mods, because they need the bypass for exactly the same reason your mods do.
Two mods are fighting over the same asset
When two enabled mods replace the same asset, both load and one wins. The loser looks like a mod that did nothing, which sends people off reinstalling a file that was never broken.
After the list paints, the app scans every enabled pak's asset list and compares them. Overlaps raise a red banner with a View details button, and each row involved gets a red Conflict chip whose tooltip names the other mods and the number of assets they share. That is detection and display only. The app never reorders or renames anything to resolve it for you, because doing that quietly would change which mod wins without telling you. You resolve it by disabling or deleting one of the two.
A row with a Not scanned chip is one whose file list could not be read, so it was left out of the check. Treat it as unknown rather than clean. The scan itself can be turned off under Settings, in the Mod Manager section, with the "Check for mod conflicts" option.
A stale disabled copy is beside the live one
Re-import a mod over one you had switched off and you end up with two copies of the same mod in the folder: the live one and a leftover disabled file. The app flags that pairing with a gold Duplicate chip, blocks the row's toggle until it is resolved, and puts a Remove stale copy link on the row. Nothing is deleted for you.
The reason the toggle is blocked rather than best-guessed is that either copy could be the one you meant to keep. Click the link, the leftover goes, and the switch works again.
Load order decided the other mod wins
The _P suffix on a mod's filename, often written as
something like _9999999_P, is what marks the pak as a patch
chunk so the game mounts it over the base content. It is not a priority
dial you can win with by adding digits. Between two third-party mods,
the app resolves precedence by the case-insensitive alphabetical order
of the file's path inside ~mods, and treats the first as the
expected winner. That is a heuristic based on observed behaviour, which
is why the conflict report calls its answer expected rather than
certain.
This is also why Organize Mods in the Tools dropdown is never
automatic. It moves loose mods into ~mods\External Mods\, and moving a mod changes its path,
which re-sorts it against everything else. A tidy folder is worth having,
but do it as a deliberate click and expect it to change which of two
overlapping mods you see in game.
The mod is broken or built for an older patch
Once the bypass is in, the files are in the right place, and nothing else touches the same assets, what is left is the mod itself. Mods that replace a hero's model or textures are tied to the version of that hero they were built against, so a mod from three patches ago can load and show nothing, or crash the game at the moment that hero appears.
Check the mod's page for the patch it targets before you spend more time on it. If a mod loads but costs you frames, that is a separate problem and our stuttering and frame drop guide covers where those frames go.
One more thing worth a glance while you are in there. The app scans the whole Paks tree against a built-in registry of risky paks, puts a red Flagged chip on any row it matches, and raises a red banner with a Remove button for a flagged file it cannot show a row for. If something in your folder is flagged, deal with that before you keep debugging it, and read whether Marvel Rivals mods are safe for what that check is looking at.
How to bisect it
With more than a handful of mods, stop guessing which one is at fault and halve the list instead. The bulk controls make each round quick.
- Open Tools and click Disable All Mods. That turns every mod off, plus your skins and the app's own graphic packs, so the game runs stock. It does not touch the bypass.
- Launch the game and confirm the problem is gone. If it is still there, mods were never the cause.
- Back in the tab, tick half your mods. The toolbar swaps to a bulk bar with Enable, Disable, Delete and a selection count. Hit Enable.
- Launch, check, and halve whichever side reproduces it.
- When you are done, put the rest back yourself. There is no Enable All Mods in Tools: tick the select-all box on the list heading and press Enable. That switches on every row you can see, so if you had mods disabled by hand before you started, untick those rows first.
The select-all checkbox on the list heading is scoped to the filtered rows, so type into the search box first and the box selects only what you can see. That turns "enable every Spider-Man mod" into two clicks.
Get the RIVALSFPS.GG appCommon questions
Why are my Marvel Rivals mods not loading?
In most cases the signature bypass is not installed. Without it the game ignores every mod pak in the folder, and it does so silently, so nothing looks broken except that no mod appears in game. Install the bypass and the same files start loading with no other change.
Why did my Marvel Rivals mods stop working after an update?
A patch can rewrite the game's Binaries folder, which is where the signature bypass files live. Your mods stay on disk and stay switched on, but nothing loads them any more. Reinstall the bypass after a patch and check the Mod Manager for a gold banner before you assume a mod is broken.
Where do Marvel Rivals mods need to go?
Under the game's Paks folder, at MarvelGame\Marvel\Content\Paks\~mods. Subfolders inside ~mods load fine, so a mod in its own folder is normal. A mod still sitting in Downloads, or in a folder someone invented outside the Paks tree, will never load.
Why are my mods not showing up in the Mod Manager list?
The tab reads the ~mods folder only. Anything outside it does not get a row, and a file whose name is not a pak, ucas or utoc is skipped. Use Open Mods Folder to see exactly what the app is reading, and Refresh after you move anything.
Can one mod stop another one from working?
Yes. Two mods that replace the same asset both load, but only one wins that asset, so the other looks like it did nothing. The app scans every enabled pak's asset list and puts a red Conflict chip on the rows involved, with a tooltip naming the other mods and how many assets overlap.
Is it safe to just delete a mod that will not work?
Yes. Deleting a mod removes its files from ~mods and nothing else. If you would rather keep it, the row's switch unloads it without deleting anything, which is also the faster way to test whether it was the mod causing a problem.