Resource bundle not found question

Hi guys,

I have a question regarding resource bundles. We experience the following weird behavior quite frequently:

On mount nodes you can specify the following property:

At random times one of the default resource bundels specified there cannot be found, resulting in the following exception to be thrown:

java.util.MissingResourceException: Can’t find bundle for base name xxx, locale nl_NL
at java.util.ResourceBundle.throwMissingResourceException(
at java.util.ResourceBundle.getBundleImpl(
at java.util.ResourceBundle.getBundle(

This exception is thrown with every site request made since the hst:defaultresourcebundleid property is on the Mount node.

Now the strange thing is the following. If we edit / save close a resource bundle (does not matter which one) in the CMS, the earlier missing resource bundle can be found again and we observe no more exceptions. However at some point later in time it starts to happen again (can be couple of days later). Did anyone else ever observe the same in a Bloomreach project?