<div dir="ltr">This is the Traceback from the log:<div><br><div>Traceback (most recent call last):<br>  File "/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/chimerax/core/session.py", line 887, in save<br>    session.save(output, version=version, include_maps=include_maps)<br>  File "/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/chimerax/core/session.py", line 616, in save<br>    mgr.discovery(self._state_containers)<br>  File "/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/chimerax/core/session.py", line 242, in discovery<br>    if sm is None and len(value) == 0:<br>TypeError: object of type 'SurfaceUpdaters' has no len()<br><br>TypeError: object of type 'SurfaceUpdaters' has no len()<br><br>File "/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/chimerax/core/session.py", line 242, in discovery<br>if sm is None and len(value) == 0:<br></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, 23 Sept 2021 at 15:38, Christophe Leterrier <<a href="mailto:christophe.leterrier@gmail.com">christophe.leterrier@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">HI,<div><br></div><div>When I'm saving a session displaying 3D image stacks as surfaces into a csx file, I get this error:</div><div><p style="margin:0px;white-space:pre-wrap"><br></p><p style="margin:0px;white-space:pre-wrap"><br></p><p style="margin:0px;white-space:pre-wrap">TypeError: object of type 'SurfaceUpdaters' has no len()<br><br>File "/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/chimerax/core/session.py", line 242, in discovery<br>if sm is None and len(value) == 0:<br></p><p style="margin:0px;white-space:pre-wrap"><br></p><p style="margin:0px;white-space:pre-wrap"><br></p><p style="margin:0px;white-space:pre-wrap">However if I switch the displayed stacks as volume, then there is no error on save.</p><p style="margin:0px;white-space:pre-wrap"><br></p><p style="margin:0px;white-space:pre-wrap"><br></p><p style="margin:0px;white-space:pre-wrap">This is with the daily build 1.3.dev202109160803 (2021-09-16) on OSX Big Sur (Intel architecture).</p><p style="margin:0px;white-space:pre-wrap"><br></p><p style="margin:0px;white-space:pre-wrap">Thanks,</p><p style="margin:0px;white-space:pre-wrap"><br></p><p style="margin:0px;white-space:pre-wrap">Christophe</p></div></div>
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