[galaxy-dev] Can't edit galaxy workflow

Hi Guys,
I updated to the latest galaxy distribution today and I cant seem to edit
existing workflows. I've seen others with this error from a Sept 07
distribution (
http://dev.list.galaxyproject.org/Can-t-edit-Galaxy-Workflow-ElementInterface-instance-has-no-attribute-render-td4656393.html),
but Jeremy Goecks mentioned that this might of been fixed in the Sept 20
distribution.

Any ideas on how to fix this?
Thanks,
Richard

Server error
URL:
http://127.0.0.1:8080/workflow/load_workflow?id=f597429621d6eb2b&_=1352495509531
Module weberror.evalexception.middleware:*364* in respond
>>   <http://127.0.0.1:8080/workflow/editor?id=f597429621d6eb2b#>app_iter *=
* self*.*application*(*environ*,* detect_start_response*)*
Module paste.debug.prints:*98* in __call__
>>   <http://127.0.0.1:8080/workflow/editor?id=f597429621d6eb2b#>environ*,*
self*.*app*)*
Module paste.wsgilib:*539* in intercept_output
>>   <http://127.0.0.1:8080/workflow/editor?id=f597429621d6eb2b#>app_iter *=
* application*(*environ*,* replacement_start_response*)*
Module paste.recursive:*80* in __call__
>>   <http://127.0.0.1:8080/workflow/editor?id=f597429621d6eb2b#>*return*
self*.*application*(*environ*,* start_response*)*
Module paste.httpexceptions:*632* in __call__
>>   <http://127.0.0.1:8080/workflow/editor?id=f597429621d6eb2b#>*return*
self*.*application*(*environ*,* start_response*)*
Module galaxy.web.framework.base:*160* in __call__
>>   <http://127.0.0.1:8080/workflow/editor?id=f597429621d6eb2b#>body *=*
method*(* trans*,* ****kwargs *)*
Module galaxy.web.framework:*73* in decorator
>>   <http://127.0.0.1:8080/workflow/editor?id=f597429621d6eb2b#>*return*
simplejson*.*dumps*(* func*(* self*,* trans*,* ***args*,* ****kwargs *)* *)*
Module galaxy.webapps.galaxy.controllers.workflow:*733* in load_workflow
>>   <http://127.0.0.1:8080/workflow/editor?id=f597429621d6eb2b#>'tooltip'*:
* module*.*get_tooltip*(* static_path*=*url_for*(* '/static' *)* *)**,*
Module galaxy.workflow.modules:*258* in get_tooltip
>>   <http://127.0.0.1:8080/workflow/editor?id=f597429621d6eb2b#>*return*
self*.*tool*.*help*.*render*(* static_path*=*static_path *)*
*AttributeError: 'NoneType' object has no attribute 'render'*
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