Today I was updating the slide show for the next course. We already made this course in February and May 2021, so I only need to change the data on the big red square, inserting a new SVG.

But when on Smart Slider backend I noticed that the animation was incomplete.
2 red squares at the end of the show are missing.
And they are the most important, because one links directly to this course landing page and the other to a generic courses page.

Everything in the animation works fine until Smart Slider loads the 4 red squares with some text promo. Then the 4 squares slides down and after a few seconds other 2 red squares should took the place of the previous starting from the left.

But they are not visible.
In the backend (and also in the frontend, of course) I can see the boundaries of the shape, but not the images loaded, as you can see in this picture.