[Chimera-users] Chimera launches multiple instances on Mac OS X Catalina

[Elaine Meng]

Hi Oli, 
Unfortunately it is a bug in Catalina itself, as discussed in this previous post and links therein...

<http://www.cgl.ucsf.edu/pipermail/chimera-users/2020-June/016910.html>

The only suggestion is to use ChimeraX instead, if possible for your specific workflow.
Best,
Elaine
-----
Elaine C. Meng, Ph.D.                       
UCSF Chimera(X) team
Department of Pharmaceutical Chemistry
University of California, San Francisco

> On Aug 7, 2020, at 6:54 AM, Oliver Clarke <olibclarke at gmail.com> wrote:
> 
> Hi,
> After upgrading to Mac OS X Catalina, Chimera now launches a new instance of the application every time I open a new file. Previously, if I for example double-clicked an MRC or PDB file, it would open in the existing instance of Chimera; Now, it launches a new instance each time, which pretty quickly leads to me having 20+ copies of Chimera running simultaneously. Has anyone else encountered this and found a way to revert to the original behavior?
> Cheers
> Oli