Steps to reproduce:

1) Download attached project 'Texture Repeat Bug.zip' and open in Unity.
2) Open 'Test' scene.
3) Check how texture looks like in the Scene view.(see attached image 'before.png').
3) In project tab, go to Assets >> Test folder.
4) Select all textures by pressing Ctr + A.
Note: Wrap Mode > Repeat disappears in Scene/Game views (see attached image 'after.png').
5) Wrap Mode > Repeat appears in Scene/Game views if you click on 'fill_texture' in Project tab.(see attached gif 'appear.gif').

Reproduced with: 5.2.4f1, 5.3.5p8, 5.4.0f1, 5.5.0a3.