Quick help blender 2.8

Hello beautiful people

I'm learning blender 2.8, excuse my noob question but i have this issue on my new model, there is certain edges i can't loop select nor i can bevel, while other loop edges work fine and i can bevel them without any issues, here is a screen shot is this a bug or im doing something wrong i have found that some vertices cannot be selected in the back of the model, sometimes my cat jumps on a keyboard i dunno if it pressed anything that made this mess. Thanks a lot in advance!

P.S i have no double vertices.