This has happened to me as well and I'm still surprised it hasn't been resolved. Like today 1.13 came out for bedrock and I have my minecon 2016 packs on my phone and I was expecting it to be on my switch because it said that if I login with my account everything would be transferred. There are other packs that aren't showing up but I really only care about the 2016 minecon skins.
Juan Zuniga
This has happened to me as well and I'm still surprised it hasn't been resolved. Like today 1.13 came out for bedrock and I have my minecon 2016 packs on my phone and I was expecting it to be on my switch because it said that if I login with my account everything would be transferred. There are other packs that aren't showing up but I really only care about the 2016 minecon skins.