topic Re: ArchiCAD 29 Bug - empty window over working window (object) and negatives in Installation & update

Archicad 29 Bug - empty window over working window (object) and negatives

Andreas81ch — Mon, 15 Dec 2025 10:32:48 GMT

Hi Graphisoft,

I tried today Archicad 29 CHE (Swiss edition) for the first tests.

Negative 2; AI tools with USB Dongle licence is not to use 😞

Negative 2; the performance is slow, like the older version AC 26, 27, 28 😞

BUG

I tried to make an object, saved it. Wanted to open > empty field on the screen, always in the foreground.

> I had do close Archicad and reopen the program..... 😞

> macOS Apple M2 Max, 64 GB RAM / Sequoia 15.5

Re: ArchiCAD 29 Bug - empty window over working window (object) and negatives

Barry Kelly — Thu, 20 Nov 2025 00:52:33 GMT

Seems to be an issue with Tahoe .

https://community.graphisoft.com/t5/Installation-update/ArchiCAD-28-3-0-amp-MacOS-Tahoe/m-p/677103#M38813

But I see your signature says Sequoia.

Is that up to date?

If so it may just be a 29 Mac issue, I have not head of it happening on Windows.

Barry.

Re: ArchiCAD 29 Bug - empty window over working window (object) and negatives

Aaron Bourgoin — Thu, 20 Nov 2025 03:07:31 GMT

Definitly a Tahoe issue. Inadvertantly double-clicking on a menu item seems to trigger it. Quitting and re-opening solves the problem.

Betreff: ArchiCAD 29 Bug - empty window over working window (object) and negatives

Andreas81ch — Thu, 20 Nov 2025 07:33:06 GMT

Yes, we currently use macOS Sequoia 15.5, not Tahoe.

With every new ArchiCAD version, always problems with macOS system updates (old or new ones....).

Re: ArchiCAD 29 Bug - empty window over working window (object) and negatives

Sand32 — Mon, 24 Nov 2025 07:45:25 GMT

Hi everyone,

I just wanted to say that I’m experiencing the same window issue in Archicad 28 after installing the Hotfix 28.3.1 on my Intel Mac (macOS Tahoe 26.1). I’m getting the same kind of empty, stuck foreground window, and the only way out is to close and reopen Archicad.

Have you managed to fix the problem on your side?
Do you recommend reinstalling the hotfix or rolling back to a previous version?

Thanks!

Re: ArchiCAD 29 Bug - empty window over working window (object) and negatives

Kevin Lee — Wed, 26 Nov 2025 07:39:52 GMT

same here, Only option is to force quit and restart Archicad. Im finding a multiple report coming from mainly AC29 users.

we are on Mac Sequoia 15.7.2

Re: ArchiCAD 29 Bug - empty window over working window (object) and negatives

Andreas81ch — Wed, 26 Nov 2025 08:01:11 GMT

What was your steps, before you saw this empty window?

Re: ArchiCAD 29 Bug - empty window over working window (object) and negatives

Aa7 — Thu, 27 Nov 2025 16:25:49 GMT

Using Sonoma 14.7.7. - and empty window remains in 28 (after hot fix) and in 29.

Only closing and restarting the program helps.

Using AMD Radeon Pro 5500M 8 GB, Intel UHD Graphics 630 1536 MB - MacBookPro 2019

Graphisoft please fix this!

Re: ArchiCAD 29 Bug - empty window over working window (object) and negatives

ksjhawk — Fri, 05 Dec 2025 00:23:02 GMT

EDIT This post was merged here by moderator.

On occasion, when working , one of the pulldown menus, when hovering across them, will stick as a blank menu. (see attached screenshot) This issue started when working in AC29, but has cropped up now in AC28 as well. As you can see from the screenshots, it obscures what is behind it, but I am still able to navigate it and the other pull-down menus. The biggest issue is that it obscures my tool bars across the top of the screen. While the one screenshot I have included shows the Archicad menu stuck, which doesn't obscure much, the other screenshot, where the Document menu is stuck, it makes working very difficult.

The only action that resolves the problem is restarting Archicad. I have not been able to recreate the problem on demand. At least 4 other people in the office have had this issue. I start my machine fresh every morning. I have a MacBook Pro with an M4 Max and am running AC 28.3.1 (6100). More often than not, I do have 2-3 AC files open and one of those is a different version. This has not happened for a few weeks after moving from 28 to 29, but today it has cropped up. It has happened in both TW and solo files. As I am typing this, I restarted AC28 and it just happened again.

Things I've tried...

- Applying a AC default work environment.

- Resizing the AC window.

- Downgrading our file from AC29 to AC28.

- Minimizing the app and maximizing again.

- Closing other apps.

- Working around it until it becomes frustrating.

- Moving AC to another screen (I have two external monitors and use the laptop monitor simultaneously).

Any thoughts? Thank you in advance...

Operating system used: Mac Apple Silicon 15.7.2

Re: ArchiCAD 29 Bug - empty window over working window (object) and negatives

ksjhawk — Fri, 05 Dec 2025 15:29:01 GMT

Thank you Barry for moving me to this topic. I swear I looked for this first.

Re: ArchiCAD 29 Bug - empty window over working window (object) and negatives

SeaGeoff — Sat, 06 Dec 2025 19:01:41 GMT

There is additional discussion of the blank menu bug here:

https://community.graphisoft.com/t5/Installation-update/ArchiCAD-28-3-0-amp-MacOS-Tahoe/td-p/677103

Re: ArchiCAD 29 Bug - empty window over working window (object) and negatives

ksjhawk — Mon, 08 Dec 2025 13:41:46 GMT

I have been able to recreate the problem, on macOS. When it happens, I am using the Command+Tab key combination to go toggle between different applications. If this is done in quick succession and I happen to be hovering over the pull-down menus, the blank window appears and gets stuck. It's only one pull-down menu, no others get stuck at the same time, and it is not always the same menu.

I have included a screenshot of my list of open apps and the first four are the ones I was randomly toggling between to recreate the issue. Not sure that it is specific to any one app. FWIW, I am using three screens, my MacBook Pro and two externals. AC is on one of the externals. I do regularly have two AC files open (AC26 and AC28) but have not tried to recreate with only one running.

Re: ArchiCAD 29 Bug - empty window over working window (object) and negatives

SeaGeoff — Mon, 08 Dec 2025 21:06:49 GMT

Thanks for those details @ksjhawk. I will test your command-tab hypothesis. I also have an external monitor which I use along side my MacBook Pro's built-in screen. Looking back I believe all my failures occurred on the external monitor but cannot say that with 100% certainty. I also suspect that having another instance of Archicad running may also be a common characteristic, although in my case that would be AC27+AC28 or AC28+AC29.

I have seen multiple blank menus on at least on occasion.

Hopefully there is enough corroborating evidence for Graphisoft to take this bug seriously.

Re: ArchiCAD 29 Bug - empty window over working window (object) and negatives

Aaron Bourgoin — Mon, 08 Dec 2025 22:27:29 GMT

I have a second monitor hooed up to my laptop as well. I seem to trigger the ghost dialog when I ham-handedly click on something in the menu twice: the first click doesn't hit the target and the second triggers the ghost.

Re: Archicad 29 Bug - empty window over working window (object) and negatives

jStrada — Thu, 08 Jan 2026 01:33:38 GMT

We have AC29 on Macs as well and have this issue regularly at our firm. Tahoe 26.2

Re: Archicad 29 Bug - empty window over working window (object) and negatives

SeaGeoff — Wed, 07 Jan 2026 19:54:46 GMT

The bug bit me again yesterday. I had only one instance of AC29 running. The main window was on my second monitor.

Re: Archicad 29 Bug - empty window over working window (object) and negatives

ABH01 — Mon, 12 Jan 2026 09:32:47 GMT

Hi,

I have the same issue, it seems to appear when having two archicad files open on two screens and clicking on the second while the first being activated.

I've tried different things to trying solving the issue without success.

PS: I have noticed it started with the new OS retina display on Mac

Using:

OS Tahoe 26.2

iMac M3

Re: Archicad 29 Bug - empty window over working window (object) and negatives

rgdesignco — Tue, 10 Mar 2026 17:55:00 GMT

Has anyone received a fix for this? It is to the point where I cannot work. My screen literally fills up with blank white pull down menus that will not go away. I am at my wits end.

Re: Archicad 29 Bug - empty window over working window (object) and negatives

Barry Kelly — Wed, 11 Mar 2026 00:23:47 GMT

Have you tried the latest preview update for 29?

This is supposed to fix it.

Barry.

Re: Archicad 29 Bug - empty window over working window (object) and negatives

SeaGeoff — Wed, 11 Mar 2026 04:38:57 GMT

The update lists this improvement, which is badly worded, but may describe the ghost menus.

Leftover empty windows in Archicad 29 on macOS no longer appear and interfere with normal use. (DEF-26526)

Either way, I have not experienced the bug since installing the update.