We use Toolset and elementor pro.
We have created extra fields where we can load photos via toolset.
In our elementor template we have a gallery and linked this dynamish to the toolset photo field.
However, it does not load these photos.
I suspect that the issue here is that the elementor dynamic content isn't able to get the data from our fields since it is a repeatable field.
What you can do is to contact the elementor team for further clarity on this or we can use out toolset views plugin to create a simple gallery to allow this to work.
Please let me know which option you wish to pursue.