Recently we have been encountering an issue with transferring projects with large numbers of images over USB from our Android device (Samsung S22 running A16) - the completely useless 'Unspecified error' error in File Explorer (Windows 11). This happens when we try to transfer directly from android/data/ch.opengis.qfield/files/Imported Projects. No matter how many times we try to transfer the remaining images we keep getting this error. It appears this may be an Android issue.

As a workaround (but also, for less savvy users who don't want to navigate deep into folders...) we have been using the 'Export to folder' option within QField to copy the data into a more easily accessible folder (e.g., android/documents).

However, it is hard to know when the export process has actually finished - occasionally it doesn't and we get an inconspicious message saying 'export process failed' in the Qfield app - and in the case of >500 photos it can take quite a few minutes for the export to have finished, but we have no way of knowing aside from manually refreshing and checking whether the number of files matches that in the original folder.

I've found that colleagues just see the folder and some files appear in the export destination after a couple of minutes and copy that over to their PC. But it is incomplete because they didn't know the export hadn't finished....

If there was some kind of progress bar that would help us know when the folder is ready to be copied over (and also if there was an error, to stop and retry).