%%[ Warning: Missing end of image marker in DCT file. ]%% can be resolved by placing the following line just above the %%EOF line in C:\Navigator\Navigator\Config\RenderConfig\Templates\DuraBolt\_Template.
<</AlternateJPEGImplementations false>>setuserparams
Explanation:
The current failure comes from the default libjpeg-based JPEG decoder. As implemented, it stops with an error when the image data ends prematurely.
It is possible to select the original Harlequin-developed JPEG decoder, which will process the files with the following warning being produced:
%%[ Warning: Missing end of image marker in DCT file. ]%%This is how our original decoder reports truncated JPEG image data. The original Harlequin JPEG decode can be selected by adding and using this page feature to the _Template file.