Microsoft Lens on iPhone hangs when pressing "Done" after scanning - how can I reach the upload menu where I can choose "OneDrive"?

I am using Microsoft Lens on my iPhone, and after scanning 100 photos, the app freezes when I press "Done": instead of opening the menu to choose where to upload the scans, the app shows a "Processing" circle and never opens the plain upload menu where you can choose to upload to OneDrive, your Fotos or other media on the iPhone or online. I upload to OneDrive all the time, and I first thought that it is an authentication problem of OneDrive. But if you do not even enter the menu to choose "OneDrive", that thought should be wrong... I've force restarted the app and checked the app's permissions, my OneDrive login, and my internet connection, and many things more, but none of these actions seem to resolve the issue. Additionally, when I tap "My Scans", a warning pops up: > Going to My Scans will discard your current session. Are you sure you want to continue? I'm aware that this "discard" option means dropping all unsaved scans, so I avoided using it, as it would lead to losing the scans that haven't been uploaded yet. How can I see the menu again showing all the ways to upload the fotos after pressing "Done"? I am afraid of losing my photos. *I tag this with "ios" and "iphone" since I did not run into this on my Android. But I might be wrong in shrinking it down to this. As soon as you find the same problem on Android as well, drop a remark, and I will drop the tags.*