The problem that tsMuxeR has with b-frames occurs only with streams that have both b-frames and pulldown, which is not the case with your encoding; however, I wouldn't use it either.
Why are you still feeding multiAVCHD? Just mux the elementary stream with EasyBD Lite and see if this works.
I really am at loss as to why you're still experiencing problems. Perhaps your PS3 is faulty or needs a firmware update or something.