Hi Cedric,
I kind of need to know the version of the ChimeraX where this doesn't work, the one on your Mac.  When you start up that ChimeraX, what is the very first line in the log?

--Eric

On Nov 25, 2025, at 10:44 AM, GOVAERTS Cédric via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:

Hi Eric,
 
Thanks
 
The session was created with version 1.11.dev202511070202 (2025-11-07) on a Windows 11 machine, this one can reopen it fine.
 
But I cannot open it on the latest Mac build, downloaded 2h ago, dated Nov 24th (sorry don’t have the version number here)
Is there a workaround ?  Can I save this session in a multi-version-friendly format ?
 
Thanks
 
Cedric
 
From: Eric Pettersen <pett@cgl.ucsf.edu>
Sent: Tuesday, 25 November 2025 19:05
To: GOVAERTS Cédric <Cedric.Govaerts@ulb.be>
Cc: chimerax-users@cgl.ucsf.edu
Subject: Re: [chimerax-users] Unable to restore session: need to install missing bundle
 
A test session I created in an older daily build worked as described (failing in the release candidate; working in the latest daily build).  In the daily build you are using, is this the first line in the Log:
 
UCSF ChimeraX version: 1.12.dev202511250038 (2025-11-25)
 
--Eric


On Nov 25, 2025, at 10:00 AM, GOVAERTS Cédric via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:
 
I just tried on the Mac daily build, not luck
(I think it was created in a windows machine)
 
 
c
 
Prof. Cedric Govaerts, Ph.D.
Universite Libre de Bruxelles
Campus Plaine. Phone :+32 2 650 53 77
Building BC, Room 1C4 203
Boulevard du Triomphe, Acces 2
1050 Brussels
Belgium
http://govaertslab.ulb.ac.be/

 

 

From: Eric Pettersen <pett@cgl.ucsf.edu>
Date: Tuesday, 25 November 2025 at 18:59
To: GOVAERTS Cédric <Cedric.Govaerts@ulb.be>
Cc: chimerax-users@cgl.ucsf.edu <chimerax-users@cgl.ucsf.edu>
Subject: Re: [chimerax-users] Unable to restore session: need to install missing bundle

Hi Cedric,
Your session will not open in the current 1.11 release candidate, but it should open in the current daily build (near the bottom of the download page).  We will work on getting sessions like yours to open in the release candidate.
 
--Eric
 
Eric Pettersen
UCSF Computer Graphics Lab
 
 
On Nov 25, 2025, at 9:13 AM, GOVAERTS Cédric via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:
 
Hi Team,
 
I’m switching between computers and platforms, but now I try to reopen CXS session it fails and I get 
 
To restore session:
install Animations bundle version 1.0 or newer
Unable to restore session: need to install missing bundle
 
I’ve tried the very last version of chimeraX (daily built).
 
How can I solve this ?
 
Thanks a bunch
 
Cedric
 
Prof. Cedric Govaerts, Ph.D.
Universite Libre de Bruxelles
Campus Plaine. Phone :+32 2 650 53 77
Building BC, Room 1C4 203
Boulevard du Triomphe, Acces 2
1050 Brussels
Belgium
http://govaertslab.ulb.ac.be/

 

 

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