I have a Samsung A51 with original Samsung Android but using the murena.io cloud for image upload. The Samsung has up to 48MP and produces > 5MB big images. In the murena cloud all images with around > 5MB don’t produce any thumbnails and give an error when you try to preview the image file. Every image I uploaded that is smaller than that works fine.
The file upload and download is not the problem, only that I have no thumbnails and preview for image files that are bigger than around 5MB, which is annoying.
https://github.com/nextcloud/server/issues/31284 - is it this thing?