How to update images in modx gallery?

Question

MODX

Good afternoon.

Site on CMS MODx, you need to update the watermark on the gallery images. The sign is superimposed only when re-creating and renaming the gallery. Actually, the same thing with the images themselves - to add an image or update a photo, you need to recreate the gallery.

Apparently, when you first save the gallery, the images are cached somewhere and only from there they are pulled, despite the addition of new images, but I could be wrong.

How can I immediately update the watermark on all images without recreating each gallery individually?