Content Rating filter for Active Playlist not working properly

I have movies with different content ratings, but Mezzmo doesn't correctly recognize the values. I use TinyMediaManger and the NFO files it creates have MPAA and certification fields (both with same value). But, when it comes to NC-17 ratings, Mezzmo classifies movies as TV-14. This is how NC-17 looks in the NFO file:

Code:

---

<mpaa>US:PG / US:Rated PG</mpaa>
<certification>US:PG / US:Rated PG</certification>

---

or:

Code:

---

<mpaa>US:NC-17 / US:Rated NC-17</mpaa>
<certification>US:NC-17 / US:Rated NC-17</certification>

---

PG, R, PG-13 or G are correctly processed, but NC-17 are all displayed as TV-14.

Milan

Mezzmo may be getting this content rating from a metadata lookup on the Internet. Do you have the setting to get Metadata from Internet websites enabled in Metadata Retrieval Settings?

No, Mezzmo is set to only use NFO file. And, I confirm that by changing some ratings, and updating Mezzmo. It picks up the values, all except NC-17.

I will check in the source code to see why NC-17 is not being detected. We are currently in lockdown and working from home so I will check this when we can get back to the office.