Hmm, the data looks ok. What you could try to do is look up the OLD_FORUM_ID and OLD_TOPIC_ID and see if it has an entry for it (those would come from the ubb.classic links). And then try bringing up that POST_ID in ubb.threads, like ubbthreads.php?ubb=showflat&Number=POST_ID
If that works, then it's a problem with the redirect itself and we'll probably need to open a support ticket so I can take a closer look.
