Instant Upload not reliable at all. Failure to upload all photos

Took a series of 6 photos while outside. Of course, the app complains I’ve got no Internet connexion and output multiple failures to upload the photos instantly. I don’t use mobile Internet while on the go (and I guess Nextcloud devs took account of this possibililty, e.g. in Belgium, mobile Internet is really really expensive). Once arrived at home, I turn on the Wi-Fi on my Pixel. Unfortunately, Nextcloud app only uploaded last 2 photos out of 6. So, my question, is it possible to improve the Nextcloud app so that it does not complain when no network connexion and that it waits patiently until I have again an Internet connexion. Also, is it possible, that Nextcloud app upload all the 6 photos I took and not only the last two ones. It seems to me, after personal use and some experiments, that the instant upload feature is not reliable. From what I have read, this is a recurring issue. As a simple user, I only wanted to raise this issue so that someday, sometime, in the near or far future, a dev will look into it.

Thank you.

Nextcloud app version: 3.28.9 on Android 14/Pixel.

UPDATE
Apparently, it uploaded all the 6 photos, but took a lot of time before uploading the first 4. So, my new question is: is it possible the app swiftly detects when the Android successfully connects to a Wi-Fi hotspot, then uploads all photos in one go, and not partially?

Again, would be nice if the app does not fall in tears when not Internet connexion.

Do you have Only upload on unmetered WiFi enabled on each of your auto-upload profiles?

I have same problem: auto-upload skip some photos from the photos directory without any warning.
In upload history they are just missing.
I use Only upload on unmetered WiFi.
Nextcloud 3.31.0 on Samsung w Android 14

Hello, I’ have same issue.
Nextcloud on Aruba Drive.
Often some photos are “forgotten” by the app and never uploaded, unless I rename them (even confirming the name without necessarily modifying it). In this case, the App notice the photo and uploads it. Very hard to have to check evey photo is uploaded. I don’t have limitation related to the use of mobile data.

Hello,
same issue again, 75 pictures over 79 were uploaded, 4 just forgotten with no explanation.
I had to rename them to be finally detected and uploaded.

I gave all possible permissions to App.
Things being like that, how can one consider such photo backup reliable?