I am converting a bootstrap based theme to a WP theme.when I add customizer control to an image (via smart actions) the image is not showing in customizer panel.if I set an image via customizer panel, the new image is showing.(the default/placeholder images are not showing in customizer panel).also when I inspect it img->src it shows (unknown).
but in the forntend it is working fine.
(wordpress 5.2.3 + XAMP)
in customizer section inspect element
What is the reason and how to solve this ?