Unable to open .cxs files saved in v1.6.1.

[Emily.Rundlet@…]

Dear ChimeraX developers,

I am in need of assistance restoring .cxs session files that fail to open after being saved in v1.6.1.

After installing v1.6.1., opening .cxs session files, and saving said files via command line w/o any additional flags, I am unable to re-open these sessions in 1.6.1 or any previous versions of ChimeraX.

I attempted to submit a bug report, but the window froze after hitting submit.

My coworker John (cc'd) is versed in python and suspects the error arises when loading "NucleotideState" data.

This the log file (file names redacted):


open /data/EmilyRundlet/XXXXX.cxs format session
Opened XXX.mrc as #100, grid size 576,576,576, pixel 1.06, shown at step 4, values float32
Opened XXX as #15.1, grid size 576,576,576, pixel 1.06, shown at step 1, values float32
Opened XXX as #10.1, grid size 576,576,576, pixel 1.06, shown at step 1, values float32
Opened XXX_localres_filt_g0_n.mrc as #14.1, grid size 576,576,576, pixel 1.06, shown at step 1, values float32
Opened XXX as #13.1, grid size 576,576,576, pixel 1.06, shown at step 1, values float32
Opened XXX as #12.1, grid size 576,576,576, pixel 1.06, shown at step 1, values float32
Opened XXX as #30.1, grid size 512,512,512, pixel 0.828, shown at step 1, values float32
Opened XXX as #31.1, grid size 512,512,512, pixel 0.828, shown at step 1, values float32
Opened XXX as #32.1, grid size 512,512,512, pixel 0.828, shown at step 1, values float32
Opened XXX as #33.1, grid size 512,512,512, pixel 0.828, shown at step 1, values float32
Opened XXX as #34.1, grid size 512,512,512, pixel 0.828, shown at step 1, values float32
Opened XXX as #20.1, grid size 380,380,380, pixel 1.05, shown at step 1, values float32
Opened XXX as #11.1, grid size 576,576,576, pixel 1.06, shown at step 1, values float32
Unable to restore session, resetting.

Traceback (most recent call last):
File "/usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/chimerax/core/session.py", line 734, in restore
obj = sm.restore_snapshot(self, data)
File "/usr/libexec/UCSF-ChimeraX/lib/python3.9/site-packages/chimerax/nucleotides/_data.py", line 472, in restore_snapshot
if data['version'] != 1:
TypeError: 'NoneType' object is not subscriptabl

___
I have +10 of these sessions that I am currently unable to open. Each has multiple carefully selected views saved, so I would be grateful for any help in restoring these sessions.

Thank you in advance for your help!

-Emily



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[Greg Couch]

I've checked in a possible fix. Please try it with a daily build from October 27th or later. It would also help if you sent me a session file that is buggy. So I can figure exactly where it went wrong. If you want to keep the session private, send it directly to me at gregc@… or via dropbox or other file sharing website.

[Greg Couch]

Please reopen if you have any problems.