Sharing to Nextcloud - incomplete file list

### ⚠️ Before posting ⚠️

- [x] This is a **bug**, not a question or an enhancement.
- [x] I've [searched for similar issues](https://github.com/nextcloud/android/issues) and didn't find a duplicate.
- [x] I've written a clear and descriptive title for this issue, not just "Bug" or "Crash".
- [x] I agree to follow Nextcloud's [Code of Conduct](https://nextcloud.com/contribute/code-of-conduct/).

### Steps to reproduce

1. share multiple files from another app, in my case TotalCommander
2. choose Nextcloud
3. pick destination, click "upload"
4. Go to "Uploads" in Nextcloud app
5. See that not all shared files are added to the list.

### Expected behaviour

All shared files should be in queue.

### Actual behaviour

The queue seems to be cut off at some point (always random, sometimes no upload happens at all). I only discovered cases where it was always the first n shared files, so no random picks of the list.

### Android version

14

### Device brand and model

FP4

### Stock or custom OS?

Custom (explain in "additional information")

### Nextcloud android app version

3.31.4

### Nextcloud server version

30.0.5

### Using a reverse proxy?

No

### Android logs

_No response_

### Server error logs

```bash

```

### Additional information

Custom ROM is /e/OS v3.0.1