Warning! macOS 15.4 update breaks Rocksmith Remastered

[BiBer]

For anybody running Rocksmith on a recent Mac. Be aware that recent update to latest macOS 15.4 breaks the Rocksmith.

Rocksmith will crash on start, and it seems currently no fix is available. Repair or reinstall is not helping. Considering it is out of support, and has been replaced with cut down no dlc Rocksmith Learn and Play just recently, this is potentially permanent situation and may lock you out of all your dlc cdlc forever on recent Macs.

Really bad, as the steams drops support on older macOS versions as well, so I just recently switched to newer Mac because the old one was dropped from Steam support.

 

[Dostwood]

I put in a ticket a few days ago with Ubisoft support and they responded this morning recommending I use the "RockTheMachintosh" code to access the rs_public_beta, but it didn't work obviously. They marked it as closed but I immediately followed up saying it didn't work and with video evidence. I understand they don't sell the Mac compatible version anymore, but I feel like in order for us to get an update fixing this we all need to submit tickets. I'm losing hope here.

[BiBer]

29 minutes ago, ichocobo said:

I have just tried with tart and mac os sonoma, with a clean install of rocksmith, and had the same problem

Tart is a virtual machine?

I pulled my old mid 2012 Macbook Pro out of the drawer, used openCore to set up 15.3 on it and et voila I have a running RS again. Was surprised, how well Rocksmith actually runs on this old hardware / new software combo.

Only performance issues are that system start up takes long and the initial indexing of psarcs on RS startup is long as well. Exactly as I remember it was on this hardware with Catalina.

So if you have an old Mac unsupported you could try OpenCore with 15.3 on it.  

[FlabbierLime92]

Please don't make me install Windows to get my CDLC back

[jasmith85]

3 hours ago, BiBer said:

For anybody running Rocksmith on a recent Mac. Be aware that recent update to latest macOS 15.4 breaks the Rocksmith.

Rocksmith will crash on start, and it seems currently no fix is available. Repair or reinstall is not helping. Considering it is out of support, and has been replaced with cut down no dlc Rocksmith Learn and Play just recently, this is potentially permanent situation and may lock you out of all your dlc cdlc forever on recent Macs.

Really bad, as the steams drops support on older macOS versions as well, so I just recently switched to newer Mac because the old one was dropped from Steam support.

Thank you for the warning. I just got a notification saying there is a Mac OS update to 15.4. I won't update for now. On a M1 Pro Macbook

[ichocobo]

Dammmm! Too late...

Is there no way of making it work? When I updated to the M3 pro, I had similar symptoms, but I finally got it working; sadly, I can't remember how.

[l7ecq7kde]

I tried PC and it also failed the same way. Are you aware of any other option? Has anybody tried a virtual machine with a Mac OS < 15.4?

[BiBer]

3 hours ago, ichocobo said:

Dammmm! Too late...

Is there no way of making it work? When I updated to the M3 pro, I had similar symptoms, but I finally got it working; sadly, I can't remember how.

Well let's hope for a solution and post here is a solution will come up. 

I for my self got old MacBook Pro out of drawer which was already out of official macOS updates and out of Steam support, used OpenCore to update it to macOS 15.3 and happily discovered that this combination runs perfectly fine.

[ichocobo]

On 4/5/2025 at 2:12 PM, l7ecq7kde said:

I tried PC and it also failed the same way. Are you aware of any other option? Has anybody tried a virtual machine with a Mac OS < 15.4?

I have just tried with tart and mac os sonoma, with a clean install of rocksmith, and had the same problem

[uberdown]

I've tried vms (via parallels) with 15.2 & 15.3 & neither worked either...
following for someone to either find a fix or the game is updated to handle 15.4 properly

[primochap]

The Rocksmith converter also isn't working after I updated to Seqioua 2 days ago.

Really regretting that update from my perfectly fine working Sonoma now

[jasmith85]

So stay on 15.3 for the mean time.

[BiBer]

On 4/9/2025 at 10:21 PM, primochap said:

The Rocksmith converter also isn't working after I updated to Seqioua 2 days ago.

Really regretting that update from my perfectly fine working Sonoma now

Well RS Converter 2.3 runs fine for me on Sonoma 2.14 and was running fine on previous versions of Sonoma as well.

I mean if you can't run RS itself it is kind of pointless, but anyway it runs fine.

[primochap]

7 hours ago, BiBer said:

Well RS Converter 2.3 runs fine for me on Sonoma 2.14 and was running fine on previous versions of Sonoma as well.

I mean if you can't run RS itself it is kind of pointless, but anyway it runs fine.

I see your point as Rocksmith is still broken, but I did get the RS Converter to work. I just had to drag the files from the downloads folder into the converter instead of straight from the web browser. 

[ichocobo]

I've managed to run the windows version using porting kit. It is not flawless, as it doesn't run as smoothly as the Mac version, although it is running at 60fps, but it is a way of ensuring it'll run besides macos updates

[uberdown]

I doubt the 15.4.1 update will make any difference to the crash but it was released yesterday.
the same crash occurs in the 15.5 beta so this is likely something Ubisoft will have to address

I opened a case with ubi support which will likely not lead to anything useful but I provided the crash report from macOS just the same

[FlabbierLime92]

On 4/13/2025 at 10:55 AM, ichocobo said:

I've managed to run the windows version using porting kit. It is not flawless, as it doesn't run as smoothly as the Mac version, although it is running at 60fps, but it is a way of ensuring it'll run besides macos updates

porting kit?  what is that?  is that something we could use?

[jasmith85]

Cheers for the info people, I'll keep on fighting the 15.4 update.

[ichocobo]

41 minutes ago, FlabbierLime92 said:

porting kit?  what is that?  is that something we could use?

https://www.portingkit.com/

It's a way of playing Windows games on a Mac. Install Windows Xdirect Steam, and then Rocksmith. Sadly, I haven't been able to run CDLC Enabler  yet, so only vanilla Rocksmith at the moment. It would be great if someone knew a way of manually enabling custom dlcs on Windows, without the need to run the CDLC Enabler software

[BluesMcGroove]

You just get the DLL from the game-support channel in discord. It's that easy

[Sniper Reload3d]

31 minutes ago, BluesMcGroove said:

You just get the DLL from the game-support channel in discord. It's that easy

In ichocobo's other thread I linked to Phantatsy's .dll post, ichocobo said that the .dll did not work for them and that the game wouldn't launch. I do not know if it is a game version / dll version mismatch or a Mac issue.

 

[ichocobo]

Yes, as @ Sniper Reload3d  noted, I've tried dropping the dll on the root folder of the game, but then the game fails to launch. Maybe the steam directx client is installing an older version of Rocksmith, and the dll doesn't work because of that. The build version is 16576867.

[BluesMcGroove]

It's going to be an issue with how the game is running. There's no other mod than using the DLL, and if the setup you're using to try to play it on Mac is crashing with the DLL built for both versions isn't working, then sorry you're out of luck. 

 

I'd hazard to guess since the DLL modifies running memory of the game you're not going to find luck the way you're attempting due to some sort of underlying Mac/Wine weirdness

[Sniper Reload3d]

12 minutes ago, BluesMcGroove said:

if the setup you're using to try to play it on Mac is crashing with the DLL built for both versions isn't working, then sorry you're out of luck. 

I'd hazard to guess since the DLL modifies running memory of the game you're not going to find luck the way you're attempting due to some sort of underlying Mac/Wine weirdness

Said much better than what I was attempting to say

[ichocobo]

1 hour ago, BluesMcGroove said:

It's going to be an issue with how the game is running. There's no other mod than using the DLL, and if the setup you're using to try to play it on Mac is crashing with the DLL built for both versions isn't working, then sorry you're out of luck. 

I'd hazard to guess since the DLL modifies running memory of the game you're not going to find luck the way you're attempting due to some sort of underlying Mac/Wine weirdness

That makes sense. At this point, it might be better to put my efforts into making the Mac version work.

[BluesMcGroove]

1 hour ago, ichocobo said:

That makes sense. At this point, it might be better to put my efforts into making the Mac version work.

Good luck. Ubi didn't bother trying to make the version they are still currently selling work for Mac. I'd probably just get a pretty cheap Windows PC to use instead