One document does not show in the "recent" list.

Good morning,
Sorry if this question has been answered, I searched but could not find anything like my issue.
There is the .odt file that I open every morning for work, in which I write a translation. something like two months ago, it stopped showing in the “recent” list (where I normally pick it up from). All other documents keep showing normally, only this one has become somewhat of a ghost. It is still here, updated every day on my desktop and opens normally. Did I click on something wrong or anything?
I am a bit flabbergasted not to find a solution, it sounds like a trivial problem.
thanks yo you all folks out there.

Don’t re-post the same question, but edit your original question if you want to add additional information.