After updating to 1.19.70, I have noticed that when summoning entities from a mcfunction file, the roation of that entity moves when summoned. 

I have tested from in game, and can confirm that when summoning an entity from the player chat, the entity summons correctly in the correct roation, however if it is summoned from a mcfunction the entity will rotate into place, however its final roation is not its true rotation. 

I have attached a video to demonstrate. 

https://drive.google.com/file/d/1NujudA3D640Qj9_Qyr9hkAID7B271JR0/view?usp=sharing

mcfunction - test.mcfunction 

summon ae:trophy1_i 271 66 -53
summon ae:trophy2_i 273 66 -53
summon ae:trophy3_i 275 66 -52
summon ae:trophy4_i 276 66 -50
summon ae:trophy5_i 276 66 -48
summon ae:trophy6_i 275 66 -46
summon ae:trophy7_i 273 66 -45
summon ae:trophy8_i 271 66 -45