Knowledge base


Get technical support for your camera systems and software. Please check our Knowledge base and documentation section before creating a support case.


Our technical support is available almost 24 hours a day, every buisness day.


It requires an online account to create a case for technical support.


Contact tech support 

    Knowledgebase article

    Article ID 1135
    Summary Capture One Preview: Thumbnails show triangle with exclamation point, warning symbol
    Problem Preview files are not coming up in Capture One.

    Solution This can be caused by two events, either the (custom) monitor profile is corrupt/missing OR because a previous folder used in Capture One has been removed and therefore the path to access the Thumbnails is gone.

  • Create a new profile or choose another profile.
    *This can often happen when users upgrade the OS without installing the new OS to a clean drive.

  • Check for profiles in the following directories:

    Mac: HD/Library/Colorsync/Profiles

    Win: C:\Windows\system32\spool\drivers\color

    What is happening here is that if the previews have already been generated in a previous version of Capture One, and can be read, then the previews will show. If another folder of RAW files does not show previews this is because Capture One is looking for the monitor profile, set at the System level, and cannot access it because it is corrupt or missing. This System Level Profile Error is causing exclamation points to display in the previews.

  • Last updated October 26, 2012

    Please wait!