Travertine Deck Tile- normal to have a few loose tiles?

[Cautiouschris]

Hello All!
Really interesting forum, and great knowledgeable folks here. Wish I had discovered months ago.
My tile sub has been out twice to handle a few small fixes. Overall I’m pretty happy with his work…. However, I still have tiles that are loose when you step on them. These are sand set pavers. Is that normal? I generally feel like if its not perfect now (i.e a few loose tiles and a few that have settled slightly), then what will it look like in a couple years?
Here a few pics for reference.
Appreciate and feedback!

 

[Toxophilite]

Over the slab, that if fairly normal for new install - to a degree. Your slab is expanding and contracting as well as those pavers. BTW, did you get that silver from Keystone Tile?

 

[Cautiouschris]

Over the slab, that if fairly normal for new install - to a degree. Your slab is expanding and contracting as well as those pavers. BTW, did you get that silver from Keystone Tile?

Thanks. I’ll point it out to my PB and see what can be done.
I’m not sure where the travertine came from…

 

[Toxophilite]

They should finish out with polymeric sand which tightens up too.