[Bug]: Download sometimes gets stuck on single files

[TrimVis]

What was the Problem?

Sometimes, especially with a unreliable connection to the server (mobile data/bad wifi), single files will get stuck when trying to download a full audiobook.
By stuck I mean that the percentage displayes does not increase and the stuck file is included in the download limit (e.g. if I set it to download at most 4 files at once, it will only download 3 files at once with one stuck file).

Waiting does not resume the download and on a app restart all downloaded files will be forgotten

Steps to Reproduce the Issue

1. Connect to a remote server with a slow/unreliable internet connection
2. Download an audibook with many files
3. Some files will get stuck, while all the remaining ones finish normally. However the full audibook download never terminates.

What was Expected?

I would have expected the app to detect the stuck/stalles file download and correspondingly retry.
Alternatively the ability to retry downloading of single files could help alleviate this problem (I couldn't figure out how to do that without retrying the full audiobook download)

Phone Model

OnePlus 12R

Phone OS

Android 15

Audiobookshelf App Version

Android App - 0.9.79

Installation Source

Google Play Store

Additional Notes

I had this issue appear reliably on mobile data (with a in theory good internet connection) and on wifi (with a not great WiFi signal).
The server is hosted at another place and accessed via a wireguard vpn (I doubt that this is related to the VPN, though).
During all this I always had the app open in foreground, as I was suspecting that battery saver shenanigans were happening (even though I have optimizations disabled/set to ask)