Image rendering is incorrect when RichTextBlock that displays an image is a child of Retainer Box

This issue occurs when using an image with RichTextBlockImageDecorator for RichTextBlock.

This displays RichTextBox of RetainerBox and RichTextBox as it is.
In the case of UMG Editor, the image is rendered at the same position, but when playing, it is rendered at a different position and ratio.
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1. Open an attached project.
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2. Play on the Editor. The UMG that reproduces the problem is displayed.
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