Honor 7 pictures aren't getting saved

Hello everybody. I recently started to have this problem with Huawei Honor 7 that pictures I take won't be saved on the sd card or neither internal phone memory (sd card is the main saving place). So when I go to gallery, there are only pictures I have taken about a month ago. Also pictures I already once deleted are always back in the gallery when i restart the phone. I have checked some basic settings and removed sd card once, nothing seems to help.

The problem also occurs in whatsapp: if Someone sends me a picture the phone says "unable to load this picture since it is not in phones memory. Try again". I have to restart the phone again to open that picture but it's still not in the gallery even though it usually shows up in there.

This problem came up one day, maybe some patches went wrong?