reverse proxy problem in 6.2.1, what changed?

I've had a reverse proxy set up forever on my NAS and when I updated to os 6.2.1, API clients stopped working (iphone/android) with subsonic. Browser is fine. The problem is something to do with the reverse proxy because if I connect the app to subsonic directly it works. Here's all I've got for the reverse proxy:

ProxyRequests Off
ProxyPreserveHost Off

<Location /subsonic/>
ProxyPass http://192.168.1.200:4040/subsonic/
ProxyPassReverse http://192.168.1.200:4040/subsonic/
Allow from all
</Location>

I have the root of subsonic set to /subsonic.

I assume this broke due to some change in apache or its configuration. os6.2.1 appears to be running a 2.2.29-netgear2 build. I'm not sure what version it was before.

The errors in the log look like this below. The error happens when I try to open an artist to list the albums. Any suggestions what might have changed in 6.2.1 with apache? Maybe a security fix or something I need to open up?

steve

[2014-12-21 10:56:33,617] WARN RESTFilter - Error in REST API: Access denied to file Adele
java.lang.SecurityException: Access denied to file Adele
at net.sourceforge.subsonic.service.MediaFileService.getMediaFile(MediaFileService.java:151
)
at net.sourceforge.subsonic.controller.RESTController.getMusicDirectory(RESTController.java
:489)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.web.servlet.mvc.multiaction.MultiActionController.invokeNamedMethod(
MultiActionController.java:473)
at org.springframework.web.servlet.mvc.multiaction.MultiActionController.handleRequestInter
nal(MultiActionController.java:410)
at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.
java:153)
.
.
.