When project has an unrelated error, cannot preview source model (which has no errors)

I have a project which has an error (classnotfounderror on a UDF). This error in no way should impact the ability to preview data from a physical source model.

From the server:
DEPLOYMENTS IN ERROR:
Deployment "vfszip:/home/pnittel/SOA51ER5/jboss-soa-p-5/jboss-as/server/default/deploy/PREVIEW_7996dca2-6ba5-4385-9c99-6a071008891e_MyID_idFunction.vdb/" is in error due to the following reason(s): java.lang.ClassNotFoundException: userdefinedIDfunctions from BaseClassLoader@113c116

{vfsfile:/home/pnittel/SOA51ER5/jboss-soa-p-5/jboss-as/server/default/deployers/teiid.deployer/}

at org.jboss.deployers.plugins.deployers.DeployersImpl.checkComplete(DeployersImpl.java:1008)
at org.jboss.deployers.plugins.deployers.DeployersImpl.checkComplete(DeployersImpl.java:954)
at org.jboss.deployers.plugins.main.MainDeployerImpl.checkComplete(MainDeployerImpl.java:870)
at org.jboss.system.server.profileservice.repository.MainDeployerAdapter.checkComplete(MainDeployerAdapter.java:128)
at org.jboss.profileservice.management.upload.remoting.AbstractDeployHandler.start(AbstractDeployHandler.java:326)
at org.jboss.profileservice.management.upload.remoting.AbstractDeployHandler.invoke(AbstractDeployHandler.java:238)
at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:930)
at org.jboss.remoting.transport.local.LocalClientInvoker.invoke(LocalClientInvoker.java:106)
at org.jboss.remoting.Client.invoke(Client.java:2034)
at org.jboss.remoting.Client.invoke(Client.java:877)
at org.jboss.profileservice.management.client.upload.StreamingDeploymentTarget.invoke(StreamingDeploymentTarget.java:304)
... 53 more
15:55:07,648 WARN [SECURITY] Processing exception 'VDB "PREVIEW_7996dca2-6ba5-4385-9c99-6a071008891e_MyID_project" version "latest" does not exist.' for session null. Exception type org.teiid.client.security.LogonException thrown from org.teiid.services.SessionServiceImpl.getActiveVDB(SessionServiceImpl.java:228). Enable more detailed logging to see the entire stacktrace.

I'll attach the model project set.