I have not. I have a couple of other gripes about my Oppo lately.
One, I can no longer power the unit on with the remote. It's not a huge deal since I have to load a disc anyway and once it's on the remote is completely functional.
Two, I got some weird behavior trying to play the Planet of the Apes BD. When I selected Play from the menu, it froze up. After power cycling, I went to scene selection and started the movie that way which worked fine.
Three, although this may not be the Oppo's fault: I tried playing an HDCD, Shaman's Harvest - Shine. It was unplayable. The HDCD indicator on my receiver kept flickering but not on the player so it's probably a problem with the disc or the Marantz. I was able to play the disc on my Xbox 360 which probably ignores the HDCD part. I don't really see the reason for HDCD, especially for pop music which is compressed. Anyway, I wish the Oppo would decode that stuff. I have it do all the decoding for Blu Rays because the Marantz can add pops to the new lossless codecs.
Jim