Files doesn't uploaded after dragging into the widget.

Im now trying with 2.3.9 library. Still not working

The "correct" setup:

- plupload_widget - 2.1.0
- plupload - 2.2.0
- plupload library - v2.3.9

v3 of the library might seem to work but it doesn't so please ensure the installed and detected version is 2.3.9 at /admin/reports/status

I would enable "plupload test" module and check if the upload works fine just with that (/plupload-test).
Might be useful checking the created file in temporary directory, and how it ends up at `/sites/default/files/plupload-test`.

You don't mention the setup, so here are some random ideas:

- Install on a minimal site without other modules
- Add plupload widget to a content entity type, not a paragraphs field or other kind of field which does Ajax requests.
- Start with a single valued field, and upload just one file.

Hello @budalokko, thank yo for your answer:

Yes, im trying with:
- plupload_widget - 2.1.0
- plupload - 2.2.0
- plupload library - v2.3.9

on plupload test I still getting this error. On `/sites/default/files/plupload-test` the file doesn't exists, but in tmp folder, the files exists (not this one that im trying from plupload test, but others files are there as .tmp)

Will try on a fresh drupal 11 and let you know later.

Thank you.

On a fresh drupal 11 works... I think that something is conflicting with it.

Will try to know which module is conflicting with plupload