Q100236: Nuke user interface briefly becomes unresponsive and autosaving



When working within Nuke, there can be times where the user interface seemingly hangs/freezes briefly and then resumes.

This can be quite frustrating, as there does not appear to be an apparent cause, and the only symptom is that you are within a quite large and complex project.

If this sounds familiar, the cause could be related to your autosave settings.


Within Nuke the preset autosave time is set to 5 seconds. If your script is quite large and complex, the amount of time it can take to save can take longer that this default duration allows.
This occurs as the Nuke script (.nk) save file itself is taking longer to generate than than the time given to write the autosave file (.autosave). As a byproduct of this process, Nuke lags for a second as it waits for both processes to finish concurrently.


We suggest to alter the the force comp autosave to a higher amount to allow sufficient time for the Nuke script to save, before the autosave saves.

This can be changed with the Preferences menu, under the General tab within the force comp autosave after field.


If the slowness still occurs after this change, then there are a couple of things we would suggest trying, in order to troubleshoot the problem further:
  1. As this could be related to a full disk cache, we would suggest checking and clearing the disk cache, as outlined in the following article:
    Q100043: How to clear your Nuke/NukeX/NukeStudio cache

  2. This could also be related to Nuke's frame server but, to see if it is, we would recommend disabling it. More information about disabling Nuke's frame server can be found here:
    Q100378: How to disable the Frame Server for Nuke, Nuke Studio and Hiero

If you have tried all of the steps in this article, and you are still encountering the problem, then please open a Support ticket and let us know the exact issue you are encountering and the troubleshooting steps you have taken so far. For more information on how to open a Support ticket, please refer to the following article:

Q100064: How to raise a support ticket

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