Regarding the upload error message, it would great if this is visible (marked photos?) directly in the mobile app. Right now, the app shows that all pictures are uploaded, I can see the thumbnails, but when I try to tag or view the details, then the app crashes with the error message I sent you a while back. This is the only way, one by one, I can find out which pictures did not upload.
On the website I cannot see any of the pictures which failed to upload from the android device. But maybe, when using the desktop upload app a similar error marking or message as in the mobile app, could be displayed for pictures with errors or not uploaded.