Projects disapearing after a download

I have been creating a project, image based, as a PDF carousel for LinkedIn, upon downloading the PDF to schedule directly within LinkedIN, I realised that my project has disapeared, or more accurately, all the content went blank (and also went from square to vertical ), akin to when you start a project from scratch. After asking around, I was able to find my project in the version history, and found out that the last usable saved verion was when I downloaded the PDF. All subsequent version had reverted to a blank project

Screenshots below:

I was working from the Windows progressive app, but the issue is showing in Firefox and Edge as well. Same with on an Android phone with the app.

Here is the link to this project
https://new.express.adobe.com/id/urn:aaid:sc:EU:dfeeb8f5-8291-411b-8447-f46d6cf9c368?invite=true&accept=true&promoid=Z2G1FQKR&mv=other

Thanks!