Unable to create thumbnail image for id 12009 from jdog logs

We need to look into this and see why the images cant be read.

2010-08-17 10:43:59,714 http-9080-3 ERROR andreask@atlassian.com 643x40466x1 iuy2no 59.167.164.33,172.16.3.45 /plugins/servlet/streams [core.util.thumbnail.Thumber] Unable to create thumbnail image for id 12009
javax.imageio.IIOException: Unexpected block type 0! at com.sun.imageio.plugins.gif.GIFImageReader.readMetadata(GIFImageReader.java:722) at com.sun.imageio.plugins.gif.GIFImageReader.read(GIFImageReader.java:794) at javax.imageio.ImageIO.read(ImageIO.java:1422) at javax.imageio.ImageIO.read(ImageIO.java:1326) at com.atlassian.core.util.thumbnail.Thumber.getImage(Thumber.java:281) at com.atlassian.core.util.thumbnail.Thumber.createThumbnail(Thumber.java:241) at com.atlassian.core.util.thumbnail.Thumber.retrieveOrCreateThumbNail(Thumber.java:215) at com.atlassian.core.util.thumbnail.Thumber.retrieveOrCreateThumbNail(Thumber.java:86) at com.atlassian.jira.issue.thumbnail.DefaultThumbnailManager.doGetThumbnail(DefaultThumbnailManager.java:125) at com.atlassian.jira.issue.thumbnail.DefaultThumbnailManager.getThumbnails(DefaultThumbnailManager.java:49) at sun.reflect.GeneratedMethodAccessor443.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.atlassian.util.profiling.object.ObjectProfiler.profiledInvoke(ObjectProfiler.java:73) at com.atlassian.jira.config.component.SwitchingInvocationHandler.invoke(SwitchingInvocationHandler.java:28) at $Proxy103.getThumbnails(Unknown Source) at sun.reflect.GeneratedMethodAccessor443.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.atlassian.plugin.osgi.hostcomponents.impl.DefaultComponentRegistrar$ContextClassLoaderSettingInvocationHandler.invoke(DefaultComponentRegistrar.java:129) at $Proxy103.getThumbnails(Unknown Source) at sun.reflect.GeneratedMethodAccessor443.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.atlassian.plugin.osgi.bridge.external.HostComponentFactoryBean$DynamicServiceInvocationHandler.invoke(HostComponentFactoryBean.java:147) at