Why doesn't the mouse GRCm38/mm10 refGene genome annotation file contain non-coding transcripts? I am new to Bioinformatics and I am exploring the refGene.txt files from the UCSC genome annotation database for several species.

My question concerns the Dec. 2011 (GRCm38/mm10) assembly of the mouse genome. I have seen that the Human one (hg39) contains both coding and non-coding transcripts. But the Mouse (mm10) RefGene.txt only contains coding transcripts.

Why is that?

Source of the file: http://hgdownload.soe.ucsc.edu/goldenPath/mm10/database/refGene.txt.gz
It wasn't the correct file.
I downloaded the file again from UCSC, compared it with the file that I was using, and they were different. This new file contained both information from coding and non-coding transcripts.
To all the kind people that took interest in my problem, I am sorry.
Edited 30/12/2020:
To add a bit of clarity; the link in the question is the correct link from which to download the correct file. The file with which I was working from the beginning was the wrong one, but I don't really know where I got it from the first time.