Over the weekend, when no jobs were running, Hudson executed a workspace clean-up. This action, for some reason, caused three of our dynamic views, referenced in several jobs, to be removed. The log shows:

INFO: Started Workspace clean-up
[<user>] $ cleartool lsview -l <view>
Tag: <view>
<rest of lsview output>

[<user>] $ cleartool rmview -force -avobs -uuid <uuid of view>
<output from rmview>
[<user>] $ cleartool unregister -view -uuid <uuid of view>
[<user>] $ cleartool rmtag -view <view>

We have many other dynamic views that it did nothing with. All of these views/jobs have been configured and running for weeks now with no issue. The system logs show nothing and the Hudson log only shows what I have posted above. Not sure if this was an issue with Hudson or with the CC plugin, but since our views are gone, I thought I'd start with the plugin.