How does Jellyfin Server counts its total movie titles?

[cohortcw]

I have 3 libraries. If I viewed them individually, it yielded the total as below.

LibA - 69 titles
LibB - 173 titles
LibC - 97 titles
total 339 titles

However, when I checked the boxes under Home > Library Folders (Automatically group content from the following folders into views such as 'Movies', 'Music'...), I noticed the total movie titles count is 338 titles instead (via Reports Plugin and Movie listing).

I tried finding any duplicates via manual scanning means but to no avail. I also tried finding any movies title that are not scanned properly but to no avail either.

How can I locate the discrepancy of the difference in total count?

[theguymadmax]

The grouping folder feature is broken and I avoid using it. There are several bugs on github documenting this:
https://github.com/jellyfin/jellyfin/issues/7959
https://github.com/jellyfin/jellyfin/issues/10384
https://github.com/jellyfin/jellyfin/issues/12086

[TheDreadPirate]

Do you have any live TV recordings? When I started digging into my setup, the discrepancy between the Reports plugin and what was counted in the library UI was caused by live TV recordings.

[cohortcw]

Unfortunately, I do not have any Live TV setup.

I don't recalled seeing this discrepancy when I was using previous Jellyfin release 10.9.x.

[cohortcw]

The grouping folder feature is broken and I avoid using it. There are several bugs on github documenting this:
https://github.com/jellyfin/jellyfin/issues/7959
https://github.com/jellyfin/jellyfin/issues/10384
https://github.com/jellyfin/jellyfin/issues/12086

Thanks my issue is similar to what you had highlighted.