When I place this item_frame :
"tag": "{Custom: money_block, CustomModelData: 10, EntityTag: {ItemDropChance:0, Item: {id: \"item_frame\", Count: 1b, tag: {CustomModelData: 10}}, Invulnerable: 1b, Invisible: 1b, Fixed: 1b}}"
It appears fixed on the wall, but when we look at its data, is says it's Facing up (1)
When leaving the game and joining in again it gets fixed and goes back to the right facing