Apples and oranges mixed together can make a nice shake (I believe... never tried it... maybe today.) It's not untypical that interface designers like me create icons and other simple graphics in Illustrator and import them in PhotoShop, where they become part of a more complex composition. But, however: Here PhotoShop does not accept copy & paste from Illustrator any more, what it did for many years before. Because this still works with Affinity Photo, I guess PhotoShop is the culprit.
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