No Picture/photo sync any more

There is this method which has worked for me in the past, it may be device and Android version dependent.

Install and connect Nextcloud app to your /e/cloud drive to unveil its true potential - #24 by smu44
Unable to synchronize files between FP3 and eCloud - #2 by smu44
Photos et fichiers non synchronisés sur le cloud - #4 by smu44