Prerequisites

• I performed a cursory search of the issue tracker to avoid opening a duplicate issue
  • Your issue may already be reported.
  • I also searched the existing issues at https://github.com/gorhill/uMatrix/issues
• This is not a support issue or a question
  • Support issues and questions are handled at /r/uMatrix
• I tried to reproduce the issue when...
  • uMatrix is the only extension
  • uMatrix with default lists/settings
  • using a new, unmodified browser profile
• I am running the latest version of uMatrix
• I checked the documentation to understand that the issue I report is not a normal behavior
• I used the logger to rule out that the issue is caused by my ruleset

Description

Similar to #8 - Except in my case I do have the ! uMatrix: Ruleset recipes 1.0 line present at the top of the file.

I'm putting together a custom ruleset recipe that currently only has a recipe for allowing youtube embeds to play (Using specific rules that are compatible with my global restrictions). This recipe does not appear as an option when opening the uMatrix panel on a webpage that contains a youtube embed with this custom recipe set enabled. The youtube recipe provided in the default english set appears to work fine.

A specific URL where the issue occurs

https://arstechnica.com/gaming/2018/12/the-orville-blends-science-fiction-and-science-fact-into-a-winning-mix/

Steps to Reproduce

1. Create a ruleset recipe file containing the text contained under Ruleset
2. Import this file into uMatrix in the Assets tab (My method was by uploading it to a private webserver and fetching the link from there.)
3. Enable the ruleset
4. Navigate to a webpage containing a youtube embed
5. Open the uMatrix panel
6. Note the puzzle icon is grayed out (Or missing the new youtube rule if you have another ruleset enabled).

Ruleset

! uMatrix: Ruleset recipes 1.0
! Title: Sierra Rulesets
! Maintainer: SierraKomodo

 Youtube Embeds
    * youtube.com
        _ googlevideo.com xhr
        _ youtube.com css
        _ youtube.com frame
        _ youtube.com script
        _ youtube.com xhr
        _ ytimg.com image

Supporting evidence

Your environment

• uMatrix version: 1.3.16
• Browser Name and version: Firefox Quantum 64.0 (64-bit)
• Operating System and version: Windows 10 Professional 64-bit