Why is my upload stuck or still processing?

Why is my upload stuck or still processing?

Summary

Uploads can take longer when you add many files, large files, or folders, so a delay does not always mean something is broken.

Who this is for

  • Users waiting for an upload to finish.

Steps

  1. Wait a little longer for processing to complete.
  2. Refresh the page once if progress seems stalled.
  3. Check whether your files are still processing or waiting in Upload Review.
  4. If you still run into issues please contact support@stlstash.com.

What to expect

  • Large uploads may take longer before they appear in the library.

Common questions

Should I re-upload immediately?

Usually no. First confirm whether the current upload is still processing.

    • Related Articles

    • Why are my uploads still processing?

      Summary Uploads may still be processing because STL Stash is analyzing file structure, grouping related files, or preparing the review flow. Who this is for Users waiting for newly uploaded content. Steps Give the upload more time if it included many ...

    • Why is my print missing metadata or thumbnail data?

      Summary Missing metadata or thumbnails usually means the print is still processing or that the source files did not provide the expected information. Who this is for Users checking a print that looks incomplete. Steps Wait for processing to finish. ...

    • How do I upload my first STL or 3MF files?

      Summary You can upload individual files or whole folders, then review how STL Stash organizes them into prints before they are added to your library. Who this is for New users uploading files for the first time. Steps Sign in to your account. Click ...

    • What happens after I upload 3MF or STL files?

      Summary After upload, STL Stash processes your files and prepares them for review before they become part of your library. Who this is for Users wondering what the upload flow does next. Steps Upload the STL or 3MF files. Wait while STL Stash ...

    • How does Upload Review work?

      Summary Upload Review is where you confirm how STL Stash organized your uploaded files before those results become part of your library. Who this is for Users uploading multiple files or folders. Users reviewing AI-organized uploads. Steps Upload ...