This morning, since the memory of the internal storage reached its limit, I moved all the pics in the Camera album to the SD card. In the afternoon, I took a couple of pics which if I remember correctly were stored by default in the same album Camera (in the SD) in which I moved the other pictures in the morning. I checked them on the way home and they were still there. At some point, I wanted to edit one of the new ones but it kept giving me errors (no connection and "you can edit only pics larger than 50 x 50 pixels"- and I was surprised since they are always larger than that!). I rebooted my phone, and when I opened the gallery the pics taken in the afternoon were gone (not to consider how many pics got corrupted among the ones I moved in the morning). I took other pictures, still ended up in the Camera folder (in the SD!), still editing error. I rebooted again, and they disappeared again.
Even weirder, after some time a retook some pics and these were saved in the Camera folder in the internal storage (Not in Camera SD!), and they are not disappearing anymore.
I already tried re-inserting SD. What can I do?