Pigs and Saddles 1.21.8

Hello! 
I am working on updating my datapack from 1.21.4 to 1.21.8 and it seems like saddles arent working like they did before. 
execute as @s[y_rotation=-135..-45.1] run summon pig ~ ~-.89 ~ {Attributes:[{Name:"generic.max_health", Base:1}],DeathLootTable:"minecaft:empty",Saddle:1b,Team:"sit.noCollision",Silent:1b,Tags:["sit.pig"],NoAI:1,Invulnerable:1b,active_effects:[{id:"minecraft:regeneration",amplifier:127b,duration:999999,show_particles:0b},{id:"minecraft:resistance",amplifier:127b,duration:999999,show_particles:0b},{id:"minecraft:invisibility",amplifier:1b,duration:999999,show_particles:0b}],Rotation:[270f,0f]}
But even simpler: 
/summon minecraft:pig ~ ~ ~ {Saddle:1} 
Doesnt spawn a pig with a saddle. 
I know they updated pigs to have variants and are "data-driven"  (per the 1.21.5 release notes), but I am ignorant about what that means. 
Can anyone help at least point me in the right direction?
Thank you!
~Keegers