2026-01-04 10:22 PM
ArchiCAD 29.0.2 (3200) INT FULL / standard template/lib etc
I don't know what's going on. 😕
These four drawings are linked to four views.
Each view has different MVO settings for windows and doors.
After updating these four drawings (either together or separately), they display inconsistently with the source views.
I tested this example in ArchiCAD 27-29 and unfortunately encountered the same error .
However, everything works correctly in ArchiCAD 26.
What is the problem?
Can someone take a look at the attached PLN source file (Ac29 int) / zip.
What is the problem? Is this just me? Are there any environment settings or other issues?
2026-01-04 10:37 PM
If you are experiencing an issue where the view placed on the layout is appearing differently to the view when opening in its appropriate view window (Elevations, Section, Worksheet, Floor Plan etc.) it’s usually a sign of a bug in the file.
if you select the View on the Layout and right-click and select ‘open on source view’ does the resulting open window display differently to what you see on the Layout?
if this is the case, close the file, leave Archicad open and then select File, Open. Navigate to you file and make sure you tick the open and repair option the open the file. This normally fixes these types of issue.
2026-01-04 11:59 PM
Repairing the file doesn't help. I also created a simple test project using a standard template (standard wall, window, door, standard MVO 01..., 02..., 03...).
Regarding updating based on source views:
1. Opening the source view of the first drawing displays the correct view, and then updating works correctly.
2. Opening the source view of the second drawing displays the correct view, and then updating works correctly.
3. Opening the source view of the third drawing displays the correct view, and then updating works correctly.
4. Opening the source view of the fourth drawing displays the correct view, and then updating works correctly.
5. But now, selecting the four drawings mentioned above and updating them will make all four drawings look—warning: the same as the fourth drawing!?
It seems that ArchiCAD remembers the last opened source view and links to all four selected and updated drawings, ignoring their own links to different source views.
2026-01-05 10:10 AM
And strangely enough, the 2D drawings on the layout update OK! 🤔
2026-01-05 03:32 PM
When you look at the MVO of each view, does it show as missing or Custom?
I have had that issue before, which can create chaos like this.
Usually it is been noticed in files that have been pushed forward from a previous AC version.
2026-01-05 05:08 PM
@JeffH each view has clearly NAMED layer/pen/Mvo settings... etc. So no chaos of anonymous names here.
2026-01-05 06:51 PM - edited 2026-01-05 07:00 PM
Another test, which I wrote about in the first post:
1. Test project created in Ac26 int (updating drawings to the layout is consistent with the source views) - original Ac26 int test project in the zip file attachment
2. The same Ac26 int project opened in Ac29 int (with the libraries from Ac26 int, of course), and the problem of incorrectly updating drawings to the layout returns again:
For comparison: unfortunately, this problem persists for me in versions Ac27/28/29 int
It doesn't matter whether I open the test project from Ac26 int in Ac27/28/29 int, or create separate/new test projects from scratch in individual versions of Ac27/28/29 int.
2026-01-08 03:32 PM
demo video showing the problem
2026-01-08 04:40 PM
I have my suspicions; since MVO's have had bugs in the past, that I'm not certain were ever fully repaired/resolved, and the MVO tie into the libraries used, it could be a library management issue. Are you using a mix of .libpack and .lfc? or have multiple versions of the same libraries (IE 25 and 27) loaded?
I'm just grasping at straws here, as I really don't know what the trigger could be; but seems to clearly be a bug in the program.
2026-01-08 04:55 PM
This is indeed a bug. Could you please report it to your local Archicad reseller?