Why can't I move all my photos from Whatsapp folder to different folders on my Samsung S8

[Android Central Question]

On numerous occasions I have tried to move several files at once from my whatsapp folder to a different folder, and then I get this notice that my phone can't move the photos because my folder is not synced.

Could you please give some advice here.

Thank you,
Nico

 

[Tim1954]

Mine saves images and videos to a folders in gallery called whatsap. I can open that, tap edit, select the pics I want to keep and tap the three dots in top right corner. Select move to album and it's done....