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2024 Technology Preview Program

2024 Technology Preview Program:
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Installation & update
About program installation and update, hardware, operating systems, setup, etc.

Flashing in 3D modeling views

When I try to navigate (rotate, pan zoom, etc.) in 3D modeling views, it flashes my site plan. It's not the end of the world, but it is extremely annoying every time I'm working in any 3D view. Does anyone know why it might be flashing like this?
-Michael Architect NY WI IL
Madison WI
Archicad21 MEP EcoDesSTAR Win10-64-bit
EliteBook8570W Corei7-3630QM@2.40GHz
QuadroK2000m RAM32 (2)250GBSSDs
4 Monitors Internet:4Up60Down
Hello Gus,

Do you model near the origin ?
Do you have two elements at the same place ?
Can you share a screen capture ?
Christophe - FRANCE
Archicad Designer and Teacher
Archicad 15 to 27 FRA FULL

OS 11.6 Big Sur - MacBook Pro 2017 - 16Go RAM
"Quality is never an accident ; it's always the result of an intelligent effort" John Ruskin
Laszlo Nagy
Community Admin
Community Admin
The first thing to do when you see some graphics anomaly is to make sure you have the latest graphics drivers on your system.
Loving Archicad since 1995 - Find Archicad Tips at
AMD Ryzen9 5900X CPU, 64 GB RAM 3600 MHz, Nvidia GTX 1060 6GB, 500 GB NVMe SSD
2x28" (2560x1440), Windows 10 PRO ENG, Ac20-Ac27
Is this the flashing you get?

I've recently noticed this in 3D views...
AC26 | Win11 | 64 bit | 32Gb RAM | Intel i9-9900K @ 3.60GHz
Barry Kelly
I noticed this during Beta testing for 24 and reported it at the time.
You will get a quick flash of whatever is in your 2D window.

I can't recall the outcome, and we don't have access now to the Beta reporting.

It doesn't seem to affect anything - just a little annoying.

One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11

I've started experiencing exactly this in 25 v6000. I assume it's a hardware issue but was there any conclusion to this?


Is your Editing Plane display on?  That has caused some screen flashing or flickering for me in the past.

AC24 / AC26 / AC27

No, it happens with or without the editing display

Nathan P

This has started to happen to me across multiple versions of AC (our office uses 22-25). I was able to record this for AC 24 but it is persistent in those I have tested. Additionally, if a change is made to the view settings of the 3D window, it will jump to the last active 2D window almost like it is trying to regen.


Video of issue


To squash any questioning replies: yes my drivers are up to date, all system updates are in place, and all peripherals are updated as well.


This was not always the case for this specific computer, but we are in the process of testing how Windows 11 works with ArchiCAD as commercial sales are ending for Win 10 and support is dwindling across multiple platforms. This did start happening with the Win 11 upgrade but according to Graphisoft, they are supporting AC versions 25 and up for the Win 11 transition. It is unacceptable to have graphical lag impact performance and efficiency.


Has there been any fix for this? Are there even any constructive thoughts from GS? Has anyone heard anything other "update your drivers" from GS?


Any help would be greatly appreciated.




Laptop:   Dell Precision 7670
Processor:    12th Gen Intel(R) Core(TM) i9-12950HX   2.30 GHz
Installed RAM:    64.0 GB (63.7 GB usable)
System type:    64-bit operating system, x64-based processor
GPU:   NVIDIA GeForce RTX 3080 Ti Laptop
System:   Win 11 Pro | 22H2 | Build 22621.1105

Dear Nathan,


I had exactly the same issue and I had a hard time concentrating.


I finally solved it by uninstalling Archicad, but using iobit uninstaller.

The difference with uninstalling from windows settings is that iobit uninstaller erases everything, including registry records of the application.


I installed it again and it works great.