This is funny.
Now that I put the files into folders, both movies were displayed for a short time. Now the old movie is also displayed as 2012. I just can’t figure it out.
You might want to try doing the things I suggested 
?
It works when I manually rewrite it in Infuse. But this does not solve my problem. It is still wrong for my parents and siblings.
Have you confirmed this? And is it wrong on all your own devices?
I asked you to post the embedded metadata. We might be able to identify the issue.
I can think of nothing else that would cause the issue you claim to have. It’s not reproducible. Properly named files without internal metadata, or with Infuse set (as it is by default) not to recognize embedded metadata, are recognized correctly.
It works perfectly when I disable the online meta data:
Edit:
Yes I have just changed the file naming, but that doesn’t matter. Now I use tinymediamanager for the naming. This app also creates the folders, etc. right away. So I’m at the point where I’m using four other apps to keep my movie collection accurate because Infuse can’t get it done (MetaMovie, MKVToolnix, MKV Tag Editor and tinymediamanager. Whether it’s because the information is deleted during updates or because Infuse can’t differentiate between the movies. Would that really be so hard to implement? Instead of writing to the DB, Infuse would just have to write to the file. I don’t mind if it’s done both ways (file and DB). But this way it’s not much fun.
I can see why!
So, assuming TV shows and Movies use the same Basic Information tabs, and the embedded metadata indicates somewhere if a file is either a movie or a tv show (Infuse by default searches movies only; unless it recognizes a tv episode ID (something like S01E05) in the filename, in which case it only searches TV programs.
Honestly, as long as your media’s file names begin with exact matches to TMDB’s titles and release years (e.g. Total Recall 2012 [whatever you want here].mkv or The Last of Us 2023 S01E01 [whatever you want here].mp4), Infuse should have no trouble at all recognizing almost all titles without issue — excepting a few outliers, usually with short one-word titles, for which someone has entered unhelpful data into TMDB’s database for said files.
Since I like to download all associated image files used by Infuse to my server (so I have full control over the images chosen, and so Infuse doesn’t need to query TMDB for them when building up its database), I use Kodi to download my non-custom made posters and all the fanart art and tv episode thumbnails.
Kodi will also save all textual metadata next to the video files and images as an .nfo.
- TinyMediaManager accomplishes the same task, but I far prefer working with Kodi — I prefer the UI, and TMM had a nasty habit of overwriting data when I didn’t explicitly ask if to. Kodi only writes data when you specifically tell it to (say, at the end of a long session customizing your latest imports), and provides a confirmation dialog.
I find this solution far easier to manage than what you describe doing, but the end results should be the same.
I’ll just note that since a lot of files one might acquire include undesired embedded metadata, it is usually preferable not to enable that option in Infuse unless you’ve overwritten the embedded metadata for every item in your collection.
I agree it would be cool if Infuse could add the images and metadata it acquires from TMDB to the files in one’s library (by either placing the files alongside or inserting them into the container — though video files that aren’t in compatible container formats would be necessarily be excluded). This wouldn’t solve the problem of tvOS ‘randomly’ deleting a users Infuse metadata database — but it would perhaps allow it to be rebuilt faster afterwords for users who otherwise wouldn’t have downloaded local metadata and images — at least for parts of the database (such as images) that aren’t already backed up to iCloud.