id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	blockedby	blocking	notify_on_close	platform	project
348	opening 1a0s gives traceback and no cartoons shown	Elaine Meng	Conrad Huang	"The problem appears to be in generating cartoons (ribbons).

open 1a0s
Error processing trigger ""graphics update""
Traceback (most recent call last):
File ""/Users/chimera/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/chimerax/core/atomic/ribbon.py"", line 542, in assign
r_front, r_back = self.transitions[(rc0, rc1, rc2)]
KeyError: (3, 4, 4)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File ""/Users/chimera/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/chimerax/core/triggerset.py"", line 114, in invoke
return self._func(self._name, data)
File ""/Users/chimera/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/chimerax/core/atomic/structure.py"", line 262, in _update_graphics_if_needed
self._create_ribbon_graphics()
File ""/Users/chimera/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/chimerax/core/atomic/structure.py"", line 517, in _create_ribbon_graphics
f, b = self.ribbon_xs_mgr.assign(rc0, rc1, rc2)
File ""/Users/chimera/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/chimerax/core/atomic/ribbon.py"", line 545, in assign
raise RuntimeError(""unsupported transition %d-%d-%d"" % (rc0, rc1, rc2))
RuntimeError: unsupported transition 3-4-4
Opened mmCIF data containing 9939 atoms and 9849 bonds"	defect	closed	critical		Depiction		fixed						all	ChimeraX