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Archicad 19- Wrong Scale and Launching New Sessions

Not applicable
when I save something in 19 and send it to someone with an older version it always changes the scale. It use to never do that when I was on an older version. Does anyone know if there is a setting or something that I am doing wrong? Also since I upgraded to 19 I can no longer open multiple sessions of archicad. I am using a mac now so not sure if those are the reasons I am having problems.


I'm a Windows user and I'm not having any problems with the scale of old version drawings.
But when I try to open a second drawing in ArchiCAD 19, even when I select 'Launch a new instance of ArchiCAD' nothing happens.
I can only open a second drawing when I startup ArchiCAD 19 again.
Architectural construction designer, draftsman, modeller
ArchiCAD 25.

Katalin Borszeki
Hi, please consult this Helpcenter link!
Katalin Borszeki
Implementation Specialist
GRAPHISOFT - the ArchiCAD knowledge base

Not applicable
Thanks Katalin

I was having the same issue launching new instances an this looks like it has resolved the issue.

Eduardo Rolon
Edited the title of the post to something more specific.
eduardo rolón AIA NCARB
Another of the forum moderators.
Macbook Pro M1 Max 64GB ram
OS X 10.XX latest
AC25 US/INT -> AC08

Vectorworks 2022

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