[Chris Lambrechts]

is the drop consistent ? As in when you bounce it twice - does it occur exactly at the same point in time ?

Always a good idea to trash prefs and do a permissions repair (if you on OSX) in these type of scenarios.

Or - another idea : create a new session and import everything from the troublesome one.

Look for an elimination process / keep plugins in mind. For example - if the suspect track has plugins on it - does it occur when you remove the plugins ... things like that.

Hope you're able to pin it down quickly. It's definitely not 'normal'

Chris