Images on the Details Tab of the Sidebar instant app is glitching.
A single image seems to be okay
If you save and come back later to add an additional second image. The previous images break.
However, if you launch the Instant App, the first image is lost.
If you go back or reload to the Instant App Editor. The first image is now lost.
Update Esri logged this as BUG-000171018 on 9/25/2024