LMT Crash on macbook air M2 2023 8GB - macOS Sequoia 15.5

[Atort]

I just installed Archicad 28 on a MacBook Air LMT M2 2023 8GB - macOS Sequoia 15.5.
When I activate the License Manager Tool, the initial screen appears and I can't even enter my Graphisoft ID. The programme crashes and is also unable to launch the GSReport programme.
I have checked that both Archicad and LMT have full disk access, and I have restarted the computer several times. There is no way to get it to work.
Any ideas?

Translated with DeepL.com (free version)

[Barry Kelly]

Maybe try downloading and installing LMT separately (although the one installed with Archicad should be fine).

https://www.graphisoft.com/downloads/licensing/help/INT/mac

Then restart your machine and see what happens.

Barry.

[Atort]

Hi Barry,

Thanks for your help, but it didn't worked.

I first uninstalled the LMT with the uninstall app. Then I reboot my computer.

Once it restarted, I installed the downloaded LMT from your link.

It crashed exactly at the same point, which is once when the [sign in...] screen appears.

Can't understand what happens. I had no problem at all with any other software, and I'd never experienced any problem with any LMT installation in any Archicad version or any computer used.

Fortunately this is not my main computer (8GB RAM is not power enough for hard work), but I'd like to have the possibility to use Archicad on it to review small residential projects and do some light work on them.

Thanks anyway

[Barry Kelly]

So, Archicad runs, just not LMT?

Barry.

[Atort]

Yes, it runs fine on demo mode.

28.0.0 (3001) INT DEMO

[Atort]

After trying to get some help from ChatGPT (and using Terminal), the error is:

zsh: illegal hardware instruction

This means that the executable is trying to use an instruction that is not compatible with the M2 (ARM64) chip, which causes an immediate crash of the process. This is a typical internal error when an app:

- Uses code compiled for Intel x86 without proper emulation.

- Or uses a library that has not been properly adapted to Apple Silicon (M1/M2/M3).

- Or uses an embedded browser engine (such as WebKit) that fails to render the web login.

Solutions proposed by ChatGPT:

Option 1: Force run with Rosetta (Intel emulation)
Option 2: Use an older version of License Manager Tool (2023 or 2022)

Option 3: Activate your license from the browser (If you have a network, educational or cloud licence, you can activate it without using LMT)

So tomorrow will try to download an older version of LMT and will try again.

[Barry Kelly]

I am lost when it comes to MAC operating systems, sorry.

There seems to be only one MAC download file, so I assume it would work on all MAC systems, Intel or ARM if that is possible.

I just don't know anything about it.

Barry.

[Atort]

Hi Barry, thanks anyway for your help and interest.
The problem definitely lies in the incompatibility of the new version of the MAC operating system with LMT. I guess the Graphisoft team will solve it soon.
My new problem is that I am not able to find the previous version of LMT that did work in Rosetta mode with Mac.
In the meantime, to be able to use Archicad from the MacBook Air, I connect to the one in my office via AnyDesk. Not that it's the perfect solution, but... less is nothing.
Best regards

[Atort · Accepted solution]

Update:

With the valuable help of José Juan Márquez, ArchiEspaña's technical support, I managed to solve the problem.
The solution is to run A28 in Demo mode and load/download the license from the help menu.
The LMT program still doesn't work (it aborts when it reaches the screen asking for the Graphisoft ID), but at least this solution allows you to upload and download the license and use it without problems.
Until the Graphisoft guys solve this issue, it is a valid solution.