All credits go to the original author Majesticeternity.
Here are the changes I have made:
1) Remove the nation in each competition.
2) Remove the fixture index and tick the checkbox "Use default fixture rules for nation/continent".
3) For 1st Division U19s All Clubs, remove the following 4 cups from the competition list.
Alicante Cup, Asturias International Cup, Mare Nostrum Cup Denver, Sevilla International Cup
4) Verify rule with 22.4 database.
I have loaded all files and played myself for about 3 years. No more missing cup. With the change 2) mentioned above, all cups shall apply the correct rules as expected e.g. U18/U19 cups are restriced to the correct ages.
However I don't recommend to load it for those leagues which have their own youth league & cup. As it can easily make the youth players tied up with the hard schedule.
Youth Tournaments (updated for 22.4).zip