The .html file must correctly point to the .mview package file. If you moved the file to a different folder after exporting, the viewer will fail to find it and throw an initialization error.
This disables extensions like ad-blockers that might interfere with WebGL scripts. marmoset viewer could not initialize
If this happens on or just one specific file marmoset viewer could not initialize
This isn’t a death sentence. It’s a symptom. Here’s the breakdown of what causes it and how to systematically fix it. marmoset viewer could not initialize