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Denys Melnyk
24ccd1c92e
textAppearCheckLine() runs synchronously from inside the width and height animation tick callbacks (textAppearWidthCallback / textAppearHeightCallback). Calling RemoveComponents(TextAppearing::Bit()) there destroys those very animations (and their Ui::Animations::Simple data) while the animations manager is still iterating them, leading to a use-after-free / null _data dereference in Simple::value(). Defer the component removal to the next main loop iteration so the running tick can unwind first.