Archicad crashes when clicking HOTLINE2 in section marker

[vlahtinen]

Hi,

I have encountered a reproducible crash related to a custom-coded section marker in Graphisoft Archicad.

When a section marker object contains multiple HOTLINE2 commands, clicking a hotline on the right-side marker and moving the mouse causes Archicad to crash. In the attached minimal test object, the crash is specifically triggered by interacting with the diagonal HOTLINE2.

Steps to Reproduce:

1. Create or load the attached test object.
2. Place the section marker in the project.
3. Click on the diagonal HOTLINE2 on the right-side section marker.
4. Move the mouse.

The section marker should respond normally to the interaction, but instead Archicad closes unexpectedly.

I have attached a minimal test object that reproduces the issue. The 2D script is as follows:

line2 0, 0, 0, AC_MarkerSize
line2 0, AC_MarkerSize, AC_MarkerSize, 0

hotline2 0, 0, 0, AC_MarkerSize
hotline2 0, AC_MarkerSize, AC_MarkerSize, 0

hotspot2 0, 0, 1

So far, the only workaround I have found is to remove the HOTLINE2 commands entirely.

I've tested this with the Finnish localization of Archicad 29.0.2 (3200) on macOS Sequoia.

Has anyone else encountered this? Is this a known issue or a limitation related to how multiple HOTLINE2 elements are handled in section markers?

I would also appreciate it if Graphisoft could investigate this issue and provide a fix.

I’d appreciate any insights. Thanks in advance.

[Laszlo Nagy]

I am not sure the AC_MarkerSize variable is supposed to be modified by the user or it can be reliably set by the user.

I asked ChatGPT about it, how is the conversation:

https://chatgpt.com/c/69933d96-50ec-832f-add7-40acc297aad0

There is also an old conversation about this in the Community, which also concluded that it is better to be left alone:

https://community.graphisoft.com/t5/Libraries-objects/AC-MarkerSize-AC-TextSize/td-p/55373

[Yves]

Hi,
I just tested your marker on AC29 3000 French on macOS Sequoia, no crashes.

[vlahtinen]

Hi! Thanks for testing this!

I noticed that the crash only occurs when the section line is perfectly horizontal (aligned with the X-axis). In addition, the diagonal HOTLINE2 on the right-side marker needs to be clicked before moving the mouse.

So it requires a fairly specific setup to trigger the crash.

[vlahtinen]

Thanks for your reply!

Just to clarify: I’m not modifying AC_MarkerSize in any way. In the test object, it’s only used as a coordinate value for the LINE2 and HOTLINE2 elements, and there are no assignments affecting it.

If you see anything I might be missing, please let me know.

[Yves]

Perhaps try adding a unID

 

[vlahtinen]

Unfortunately this didn't fix it. Good thinking though, thanks for the suggestion!

[Palawat]

Yes. It crashes on me too (AC29 3200, on Windows 10).
When clicked on the hotline2, the pet pallete appears as clicked on the actual section line (with the "Offset Edge" and other options). May be, if Archcad "thinks" the hotline2 is the section line, the diagonal hotline2 could causes the issue since the actual section line does not allow diagonal view point.

But Yves said "no crashes", maybe it's an OS thing.

[Tamas Polyak]

Hi,

I could also reproduce it, but it didn't crash just the floor plan window froze.

I'm looking into it.

Regards,
Tamás

[Yves]

Unfortunately, I was also able to reproduce the crash …

And I can confirm the immediate crash when selecting the diagonal HOTLINE option while moving the mouse.

This happens regardless of the Archicad version: 24, 27, 29, etc.