After the update the 300+ photos I had with information attached to most of them is gone. Also my ability to add tags is gone . Is there anything I can do?
I have not done much on my phone to edit or change tags but if you long press on the picture a menu will appear giving you the tag info. However, like you said, there is no option available to edit the tags.
I looked through some past camera/photo apps that I have used before and I think QuickPic by allsnew (a free app in the google app store) may do what you need. I also looked back at pixler express and snapspeed but I don't think they have the option to edit tags.