Please fill out the following sections to the best of your ability, it will help us investigate bugs if we have this information at the outset. Screenshots are especially helpful, so please provide those if you can.
Platform (Android, iOS, Website): Website
Browser, if a website issue (Firefox, Chrome, etc) : Chrome
URLs (aka web addresses) of any relevant observations or pages: https://www.inaturalist.org/observations/upload
Description of problem: Lately I have been having intermittent issues with the upload process. Most recently (yesterday) I uploaded 5 groups of observations, and for no discernable reason two of them failed. They were highlighted in red and iNaturalist informed me there was a problem with the upload, and asked if I wanted to ignore the error or stay where I was. Neither option allows you to stay and try again. Both options simply take you to your observations list to show you which uploads were successful. I did not think to grab a screenshot at the time, but the behavior is consistent.
In every case, a second attempt has been successful in uploading the observations, so the issue is not with the photos or data. The current behavior forces the user to fill out the observation forms from scratch again. The preferred behavior would be to give the option to try again.