Because I tried several times and I didn’t delete all failed observations.
I’ve made a screen recording to demonstrate the issue. First tries with one of the mentioned images don’t work. The others work though. https://youtu.be/tsZ7jqJoCXg
first, for someone to properly troubleshoot this, you will probably have to e-mail help@inaturalist.org or provide originals of the photos in a shared location. loading the photos to this forum will strip all the metadata from the photos (for privacy, i assume).
but now back to the subject of 1 observation with multiple photos vs. many observations. it looks like you were able to successfully create at least one observation for the bird. have you tried to open up a successful observation and add the additional photos from there?
I think Discourse strips metadata from the photos (at least it has for photos I’ve uploaded). @iPhil can you share a dropbox or google drive link to the photos, or email them to help@inaturalist.org? It would also be helpful if you can send some log files to us as well.
To send log files, go to the Settings tab in the app and tap three times on the version number. You will then have the option to email the log files to us.