Xlib: PuTTY X11 proxy: wrong authorisation protocol attempted

[dictum9]

As oracle, I try to run the "owm" application and am getting the following errors:

I have re-generated the 'magic cookie' .Xauthority file, looked at ~/sshd_config file, etc. to no avail.  $DISPLAY is set correctly.

Normal X windows programs like xterm and xlock are working, so it does not appear to be an SSH issue.

Any idea why this is happening?

 /oracle/app/product/fmw11114g/forms/bin/owm
Xlib: connection to "localhost:12.0" refused by server
Xlib: PuTTY X11 proxy: wrong authorisation protocol attempted
Exiting
java.lang.NullPointerException
        at oracle.ewt.lwAWT.BufferedApplet.<init>(Unknown Source)
        at oracle.sysman.emSDK.client.appContainer.WebApplication.<init>(WebApplication.java:752)
        at oracle.security.admin.wltmgr.owma.OwmaApp.<init>(Unknown Source)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
        at java.lang.Class.newInstance0(Class.java:359)
        at java.lang.Class.newInstance(Class.java:312)
        at oracle.sysman.emSDK.client.appContainer.WebApplication.main(WebApplication.java:3316)
Done.

This below is a different error to the same command, but this is what I get when I run it via Fsecure.

X connection to localhost:13.0 broken (explicit kill or server shutdown).