CSV metadata doesn't show up, so have to keep adding it manually, HELP

Hello, everyone, please share your insights regarding video uploads and using csv to add metadata to your clips?
After few years of wasting time adding clip info manually on upload page hoping to solve it for good despite of that I’ve already tried to use this new csv metadata sheet upload function.
Unfortunately it just didnt work out for me, even if all rows were processed successfully.
Metadata wasnt showing up on uploaded files.
Please maybe someone has any tips on dealing with it? Experiences?