As a programmer I know that programs behave different with huge amounts of data.
You can contact me if you have problems going in this direction.

OK, watching your log now again I see you tested on tracklist consisting of 238437 tracks. I tested list under 20000 tracks and that's the difference, it revealed that it is instance of issue https://www.ventismedia.com/mantis/view.php?id=18117
i.e. I can replicate on larger databases and tracklist with more than 20K item.
So no further info needed.

Thanks!

EDIT: It also revealed this issue https://www.ventismedia.com/mantis/view.php?id=18559 (to be fixed for 5.0.2)

I forgot. I'm using 2519.

I have deleted nothing.
The octophoros serenade is written K.361 (without space) and the zefiro serenade is written K. 361 (with space). Therefore the octophoros is sorted a few lines below the zefiro and is not within the visible part of the window.
I have repeated the whole process once again and started dbgview.exe at the beginning. First I removed the zefiro entry from the database.
https://drive.google.com/file/d/1N6QMQy ... sp=sharing
I wrote a comment into the screenshots.
Hope this helps.

Hi, thanks for the screenshots/files.

I am still quite confused by the screenshots though, on your screenshot MM5_3.jpg there is 'Column Filter' enabled with columns Artist, Album, Album Artist.
In the 'Artist' column you selected 'Mozart, Wolfgand Amadeus' and in the 'Album' column I see album 'Serenade K.361'Gran Partita' (Octophoros)'
BUT on the MM5_4.jpg the 'Serenade K.361'Gran Partita' (Octophoros)' is no longer there, but was replaced by the newly added 'Serenade K.361 | Divertimento K. 166 (Zefiro)' , so the question is why the 'Serenade K.361'Gran Partita' (Octophoros)' is no longer there? Did you deleted the album from library between the screenshots 3 and 4? Or what exactly you did between those two screenshot? Could you capture in a screencast video?
And are you using the last build 2519 ? From the debug log I can't see this as the log isn't complete, probably DbgView wasn't started prior to MM5 start?

Anyone else is ably to replicate this issue to shed some light on this and find the exact steps?

https://drive.google.com/file/d/1ZCyhBf ... sp=sharing
Here are a number of screenshots and a log.
It shows how I add an album, after inserting it is not visible, when I actualize the database, I can see it.
Hope you can get the problem.

This screenshot comes not after the process of adding.
Tomorrow I will send you a series of screenshots documenting the process together with a log.

Hi, I still can't replicate. Used also Music > Artists in 'List (by Album)' view with 'Column Filter' enabled (and empty database) and both column filter and file-listing is populated correctly while adding new tracks via menu Add/Rescan.

On your screenshot I see that you added only 6 files to your database and the UI seems updated correctly -- or can you eleborate what's missing/wrong on your screenshot?

https://drive.google.com/file/d/13wL4aM ... sp=sharing
All columns are not uodated after adding files to the database.

Is it just the Column Filter that is not updating, or are the files also not showing in the Filelisting? Could you attach link to a screenshot of your exact Filelisting configuration?

The 'Interpret' column is not actualized too.

I'm using now 2519.
After adding an album it does not appear in the column "Album".

Hi, I can't replicate,
I am e.g. in Music > All Tracks , List view and the tracks are gradually adding there while scanning:
Similarly in Music > Artists, Grid view and the artists are gradually adding there while scanning.

In which view/node you are when the database isn't updated?
How exaclty you are adding the tracks to the database?
Couldn't it be that you are in a different collection?

Shall I send you a corresponding log?

I'm using 2516. Sure, pressing F5 updates the whole database. Therefore I know that the database itself is updated, only it is not displayed. It should work like it worked in MM4.