How can i have plex only read file name not property title ?

Your problem is you’re using MP4/M4V files and have Local Media Assets at the top of the lists in your Shows Tabs. Move it to the bottom. Then Refresh or…:

The Plex Dance®:

  1. remove show/movie from library
  2. update library
  3. empty trash
  4. clean bundles
    https://support.plex.tv/hc/en-us/articles/200392106-Library-Actions <— update library, empty trash, clean bundles
  5. bring names and structures into compliance/ or the ultimate bundle reboot operation
  6. replace corrected show/movie into library
  7. update library

All Steps. In Order. No Shortcuts.

Also make sure your files are properly named - FileBot (link in my signature) is probably the #1 Plex Companion.

If you use MP4/M4V files you should move Local Media Assets to the bottom of every Agent list everywhere - under all tabs or this very same thing will continue to create problems.