I have recently been having a problem with playback when tracking guitar with my Axefx III. I am using a mac and external hard drive that is thunderbolt. While I am tracking guitars sometimes when I playback what I just recorded the guitar will sound unprocessed like a DI track. Even though it's the processed track. Sometimes all of what I recorded and sometimes just halfway through what I just recorded. If I close the session and reload, it fixes the problem. This is intermittent but really annoying while I am trying to write music. I am using the axefx as the interface in the case, and I track a wet and DI track simultaneously. Never had a problem in the past. Has anyone experienced something like this?