Hi Etienne,
There are two places to view or download the preprint file:
The Analytics tab is only including views of the File detail page (
https://osf.io/c3f5h/), but the download count aggregates downloads from both the File detail page and the Preprints page.
Does that help?
Best,
Sara
PS Another caveat to keep in mind when viewing Analytics on the project Analytics tab is that Adblocking software may interfere with view count capture. But, in this case, I'd be willing to bet most people are finding your file via PsyArXiv and downloading it there :)