Session restore for maps: KeyError: 'map ids'

[ferrinm@…]

The following bug report has been submitted:
Platform:        Darwin-17.7.0-x86_64-i386-64bit
ChimeraX Version: 0.91 (2019-07-07)
Description
Attempting to open any .cxs session file throws error:

open /Users/lilliancohn/Desktop/test.cxs format session
Unable to restore session, resetting. 

Traceback (most recent call last): 
File "/private/var/folders/68/6fvwdkt905nbdxq38lcr50000000gn/T/AppTranslocation/47146DB5-EEAE-4C4A-B293-A910C5424CBD/d/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/chimerax/core/session.py", line 629, in restore obj = sm.restore_snapshot(self, data) 
File "/private/var/folders/68/6fvwdkt905nbdxq38lcr50000000gn/T/AppTranslocation/47146DB5-EEAE-4C4A-B293-A910C5424CBD/d/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/chimerax/map/volume.py", line 3454, in restore_snapshot def restore_maps(trigger_name, session, mcs = mcs, map_ids = data['map ids']): KeyError: 'map ids' 


Log:
Startup Messages  
---  
note | available bundle cache has not been initialized yet  
  
UCSF ChimeraX version: 0.91 (2019-07-07)  
© 2016-2019 Regents of the University of California. All rights reserved.  
How to cite UCSF ChimeraX  

> open
/Volumes/bark_external/google_drive/grad_school/db_lab/data/wall-e/20190613_exp4.4.2_timelapse/processed_data/4.4.2B1/4.4.2B1.4_bc.cxs

Unable to restore session, resetting.  
  
Traceback (most recent call last):  
File
"/private/var/folders/68/6fvwdkt905nbdxq38lcr50000000gn/T/AppTranslocation/47146DB5-EEAE-4C4A-B293-A910C5424CBD/d/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/core/session.py", line 629, in restore  
obj = sm.restore_snapshot(self, data)  
File
"/private/var/folders/68/6fvwdkt905nbdxq38lcr50000000gn/T/AppTranslocation/47146DB5-EEAE-4C4A-B293-A910C5424CBD/d/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/map/volume.py", line 3454, in restore_snapshot  
def restore_maps(trigger_name, session, mcs = mcs, map_ids = data['map ids']):  
KeyError: 'map ids'  
  
opened ChimeraX session  

> open
/Volumes/bark_external/google_drive/grad_school/db_lab/data/wall-e/20190613_exp4.4.2_timelapse/processed_data/4.4.2B1/4.4.2B1001_bc.tif

Opened multichannel map series 4.4.2B1001_bc.tif, 3 channels, 17 images per
channel, grid size 512,512,21, pixel 0.14,0.14,0.5, shown at step 1, values
uint16  

Empty filename passed to function  

Empty filename passed to function  

> save session /Users/lilliancohn/Desktop/test.cxs

> close

> open /Users/lilliancohn/Desktop/test.cxs format session

Unable to restore session, resetting.  
  
Traceback (most recent call last):  
File
"/private/var/folders/68/6fvwdkt905nbdxq38lcr50000000gn/T/AppTranslocation/47146DB5-EEAE-4C4A-B293-A910C5424CBD/d/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/core/session.py", line 629, in restore  
obj = sm.restore_snapshot(self, data)  
File
"/private/var/folders/68/6fvwdkt905nbdxq38lcr50000000gn/T/AppTranslocation/47146DB5-EEAE-4C4A-B293-A910C5424CBD/d/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/map/volume.py", line 3454, in restore_snapshot  
def restore_maps(trigger_name, session, mcs = mcs, map_ids = data['map ids']):  
KeyError: 'map ids'  
  
opened ChimeraX session  




OpenGL version: 4.1 ATI-1.68.21
OpenGL renderer: AMD Radeon HD 6750M OpenGL Engine
OpenGL vendor: ATI Technologies Inc.

[Eric Pettersen]

Reported by Max Ferrin

[Tom Goddard]

Fixed.

ChimeraX session restore of multichannel image series was broken, apparently the code was changed and not tested.