Iphone Stickers sending as generic emojis

[uqtdev]

Steps to reproduce

1. Where are you starting? What can you see?
   Any matrix chat

2. What do you click?
   On Keyboard > Emoji > Select any sticker in emojis or in the stickers section

3. More steps…

Outcome

What did you expect?

The sticker to be sent as an image with no background

OR

The image to be turned into a sticker in a sticker pack, named and linked by the user, if possible.

What happened instead?

invisible character will appear in message box. When sent, the emoji will have the generic emoji character

Your phone model

Iphone 15

Operating system version

iOS18.7.8

Application version

26.04.1

Homeserver

Continuwuity 0.5.7 (selfhosted)

Will you send logs?

Yes