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Table of Contents




This documentation is current for Release 3.0.0, which is not yet available. For the Release 1 version of this page, see v.23 found under Page History. For the Release 2 version of this page, see v.24 found under Page History found under Page History.

Content Creation

  • Jira
    serverIU DLP JIRA
    An Avalon item is created every time you choose the Create menu even if you do not associate any media or metadata with the item.  These Avalon items will only be viewable by Collection Staff because they receive access status of "Collection Staff Only" by default.  Avalon items can be deleted individually. 

  • Items can be published without adding any media to them.  To keep them hidden, edit the item and then, on the Preview page, click Unpublish at the top of the item.
    serverIU DLP JIRA
    Long section titles can cause Avalon to throw an exception. To work around this problem keep section titles shorter than 32 characters.
  • Jira
    serverIU DLP JIRA
    Content in the batch ingest file is case sensitive. Be sure not to mix case as this might case problems with the ingest process.
  • Thumbnail/Poster Image

    • Jira
      serverIU DLP JIRA
      Poster and thumbnail images do not match. 

    Group Management

    The Manage Groups interface will allow the creation of a group name with embedded (blank) spaces, but sometimes members of that group will not have access to items in the collection. Solution: For now, don't create groups with spaces in the name–use hyphens or underscores.
    In the Manage Groups interface it is possible for members of group_managers to delete any Ad Hoc groups even if they are not the group creator. If you do try to delete these groups, you will receive a delete confirmation message.
  • Jira
    serverIU DLP JIRA
    Renaming a group may remove permissions from collections and items. To fix this problem be sure to reapply any exceptions after the group has been renamed.
  • Player and Controls

    serverIU DLP JIRA
    serverIU DLP JIRA
    If you switch streaming quality the video starts over at the beginning, for multi-section parts you need to change the quality for each section.
    serverIU DLP JIRA
    The poster images may have a strange aspect ratio when in full screen mode. This does not affect video playback which retains the correction dimensions.
    serverIU DLP JIRA
    Mobile playback uses the native interface when in fullscreen mode which means that certain controls disappear.
  • Jira
    serverIU DLP JIRA
    Playback does not work with MPG4 files that contain multiple tracks or disc information.  A temporary fix has been created but has not been merged into the master code.
  • Player Embedding

    System configurations

    serverIU DLP JIRA
    By default Matterhorn will process one item for each available core. Running too many conversation processes at the same time in Matterhorn might cause it to freeze up. This will result in unexpected failures. If this happens tweak the maximum concurrent workflows value to restore stability.

  • Jira
    serverIU DLP JIRA
    Uploading a file larger than the value configured in the Master File model will throw an exception instead of being gracefully handled. If routinely uploading files bigger than the default either change it or use the dropbox interface.
  • Back to Avalon Collections Guide


    Managing Content

    Manual Creation, Editing, Deletion

    1. After saving the Manage Files page without uploading any files, attempting to upload files later results in an error - #2387
    2. Creating large, multi-file media objects using the dropbox interface times out - #2801
    3. Updating collection information deletes additional managers - #2994

    Batch Ingest

    1. When a master file is moved during a batch ingest, the batch fails - #2310

    Bulk Actions

    1. Selected items are cleared from the Manage Selected Objects page after moving them to a new collection - #2437


    1. Creating a thumbnail for an item without a poster image generates an error - #2093


    1. Using Internet Explorer 11 or Microsoft Edge, items cannot be moved between playlists in the Edit Playlist page - #2121

    Item Access

    1. An unpublished item with a lease to a user for a specific date can still be found by the user through browsing or searching - #1686
    2. Published but hidden items with a lease to a user or a group still appear to the user though browsing or searching - #2388
    3. Items in the "Selected Items" list do not disappear and are still available to a user after a lease ends - #1701
    4. Item lease with a date range assigned to an IP address gives access to the item even beyond the date range - #2081

    Avalon Media Player


    1. On iOS, autoplay does not always automatically start playback for playlists items that have new sources - #2611
    2. Selecting a playback quality causes playback to restart at the beginning when using Android - #2876
    3. Internet Explorer 11 has navigation issues with multi-section items and with playlists - #2827
    4. Seeking while paused causes the poster and spinner to remain until play is selected - #2826
    5. Structural metadata with undefined sections causes unexpected behavior in the track scrubber - #3047


    1. While using Edge, the volume adjust bar is trimmed short on both top and bottom - #2122
    2. The video end time displays incorrectly at first when launching Avalon on a mobile device - #1689
    3. Hovering over the audio icon in the audio player causes the quality and playlists icons to move out of alignment - #1762
    4. The playlist index table is not adapted for responsive design - #2389
    5. The scrubber bar disappears/does not work at various times when using Android - #2875, #2748
    6. After selecting a playback quality in Android, the quality selector does not disappear - #2874
    7. Advancing to another section or item cancels fullscreen mode - #2979
    8. Selecting the Add Marker button does not cancel fullscreen - #2978
    9. Within an iFrame, the media player does not resize - #2961


    1. In Safari, the text weight in an embedded audio player shifts unexpectedly - #2844


    1. In certain configurations of Firefox, Play/Pause is not accessible with the SPACEBAR - #1644
    2. Tabbing on "Create Collection" screen can escape the modal scope - #969
    3. User can't change video quality using the keyboard - #2678
    4. Keyboard navigation in Safari does not work properly - #2707
    5. Captions are deselected when moving to different section in Safari. Users need to click the captions button to re-enable captions when a new section starts playing - (more information)

    Standalone Media Player

    1. The time displayed at the end of each minute displays both the 60th second followed by the 0th second; e.g. 2:59, 2:60, 3:00 - #1975


    File Management

    1. Deleting a master file sometimes causes a 500 error - #1392
    2. Some derivative files are unmanaged when set to 'Skip Transcoding' in a batch ingest - #2842

    User Management

    1. A successful login sometimes redirects the user to unexpected pages - #2109
    2. Updating a collection description removes users from staff roles #2994

    User Interface

    1. The Avalon logo and 'expand menu' icon display incorrectly using a small browser window - #2714