The affect you are experiencing can occur when a plug-in introduces more delay into your signal flow than your DAW can compensate for. This generally only occurs with very CPU heavy algorithms and plug-ins and it may cause your track to be out of sync with the rest of your audio.
In these cases we recommend processing your audio 'offline' as this will not affect the sync of your track.
In Pro Tools, offline processing is handled by AudioSuite plug-ins:
*For more information about how to adjust for Latency or Delay Compensation in your DAW/host please see the article below: