When Version 1.4 for Le Mans Ultimate was released late last month, there was anticipation about new tracks in the USA and a spate of fundamental changes that should elevate the increasingly popular sim racing title.
The community has soured somewhat since, with recurring accidents during multiplayer sessions that seem to be grossly exaggerated, plus a brake duct bug that results in extraordinarily high temperatures.
Consequently, two high-profile organised leagues are on a hiatus until these quirks can be rectified â a stark contrast to the positivity surrounding Le Mans Ultimate earlier in 2026.
Events postponed
Today, 18th August, competitive sim racing platform Low Fuel Motorsport paused its Le Mans Ultimate-utilising Pro Series competition.
âDue to the current technical state of LMU, the Simverse Pro Series will be paused until further notice, with the hope of resuming the season properly in the near future,â read its statement.
âWe appreciate everyoneâs patience and support. Weâll keep you updated as soon as there is more information regarding the continuation of the season. Thank you for your understanding!â
This follows a similar move by Virtual Motorsport Series and its Pro competition, which runs seven splits across ~250 drivers. The top four splits have paid entry and a prize pool.
âFollowing the release of V1.4 and the following hotfixes and patches, we believe that the current game-state on Le Mans Ultimate is not compatible with the high-level competition we run at VMS,â it said.
âDue to this, the resumption of the season will be postponed.â
âWe are in talks with various drivers who are working with the dev team at S397 to resolve these compromising game issues and we will make sure to start racing as soon as possible when fixes are put into effect.
âThank you all for your continued support of VMS and we look forward to being able to finish Season 5 in the way you all deserve.â
Whatâs gone wrong?
The Version 1.4 update launch was somewhat neutered by a proposed paywalled joker system which went down about as well as a last-lap breakdown at Circuit de la Sarthe.
No matter. Motorsport Games acted quickly, and ahead of its public release, there was a timely (and advised) change of strategy.
Onwards, good ship Le Mans Ultimate.
ExceptâŚ
There was a new netcode. A shift from Transmission Control Protocol (TCP) to âreliable UDPâ (which, in theory, should avoid delays typically seen with TCP).
At the time, publisher Motorsport Games explained, âOur industry-leading netcode just took another step forward.â
It self-tempered that hyperbole, however, with the following qualifier:
âWhilst weâre testing this internally, there may be some teething issues in the first weeks as we really scale with you all using it.â
This was, by all accounts, an honest appraisal of the change, flagged as potentially volatile before launch.
Three weeks later, there do appear to be instances of the netcode âteething issuesâ.
At the same time, it also stated that a third-party âonline service layerâ was being replaced with a native system called âRaceOSâ.
From the outside, the change seems a little hasty, as the platform was already known for genre-leading online car contact.Â
If Motorsport Games and the creation team Studio 397 believe thereâs room for further improvement, letâs hope this recent pain is worth it.
Sim racing communities are awash with clips of strange contact instances. The worst offending items see cars fly âto the moonâ, but others are as if one car hits an invisible barrier, causing it to spin off the track (example embedded below), while the other vehicle continues without a blemish. In other instances, cars oscillate in an unnerving fashion.
Then thereâs the brake duct issue, which, while the netcode instability is concerning, is perhaps a more pertinent challenge presently for the competitive scene.
This bug seemingly randomly affects drivers, both on and offline, with the brake ducts acting as if they are fully closed irrespective of the actual setup.
Consequently, brake temperatures can reach up to 900°C or fail to cool, and that means you canât stop. So far, the only workaround seems to be restarting the game, and for some, numerous times before it âmagicallyâ resolves.
Next steps
Fix the game, obviously. In fact, Iâm pretty sure itâs as simple as flicking a few toggles and releasing a hotfix.
Not so fastâŚ
Evidently, itâs not that straightforward. Two hotfixes and one patch have been deployed since Version 1.4âs fateful launch and the aforementioned issues persist. Traxion has approached Motorsport Games for comment.
âBut in order for us to make progress, unfortunately we seem to on occasion break things and we donât think that the [new] network protocol is necessarily linked to the degrade in the networking experience; it might be something else that weâve done,â said a contrite President and Chief Executive Officer of Motorsport Games to OverTake.
âWeâre investigating that at the moment quite hurriedly⌠All I can say is sorry right now.â
âWe do have a good working relationship with Studio 397, and we trust that these issues will be fixed. Itâs unfortunate that perhaps pressures on the team have caused these issues to be pushed into the public branch,â said a VMS spokesperson to Traxion.
Ultimately, these leagues want to keep racing. They, and their respective communities, enjoy Le Mans Ultimate. Presently, they act as an unwitting magnifying glass on a borked update.Â
However, the past four weeks must be heeded. No matter the groundswell in support and sales, donât take your eyes off the fundamental on-track action.
From what we learned from V1.3, big updates in Le Mans Ultimate tend yo create a host of new bugs and underlying issues especially with changes to the foundation of a certain component, such as the GUI where they had to change it to make it suitable for consoles in the future, it made the UI so much worse and laggy, and in the following months they managed to solve all the issues and made the GUI as good as pre V1.3, and i have no doubt that they will do the same with the new issues to the netcode, and this is a price worth paying to have a reliable 62 car grid 24H of Le Mans and a chance to bring back Le Mans Virtual.
Whatever happens, we know that the devs always listen to the community, so its a matter of time until the netcode is back or even better to when it used to be, and all we need is a bit of patience.
Discussion
From what we learned from V1.3, big updates in Le Mans Ultimate tend yo create a host of new bugs and underlying issues especially with changes to the foundation of a certain component, such as the GUI where they had to change it to make it suitable for consoles in the future, it made the UI so much worse and laggy, and in the following months they managed to solve all the issues and made the GUI as good as pre V1.3, and i have no doubt that they will do the same with the new issues to the netcode, and this is a price worth paying to have a reliable 62 car grid 24H of Le Mans and a chance to bring back Le Mans Virtual.
Whatever happens, we know that the devs always listen to the community, so its a matter of time until the netcode is back or even better to when it used to be, and all we need is a bit of patience.
Would love more 24hr events and the return of Le Mans Virtual, totally agree, let’s hope it is indeed changes that help the future of the platform.