Foto upload from Nextcloud Android app doesn't use the date where pictures made instead the date of the upload

I want to use nextcloud to upload pictures from my Android Phone to the nextcloud automaticly. Therefor I’m using the nextcloud Android App.
The plan is to create a copy of all pictures in the cloud. It is uploading the pictures. But the problem is that now I lost the date when the pictures have been made. Just the upload date is used. That is really annoying. Is it a bug or is there a solution to have also the date?