A tile moves or comes loose. Can it simply be glued?

What you can do

Avoid walking on a moving tile. Photograph the area, cracked joints and damp marks.
Do not inject random glue through grout or tile over an unstable covering.
Determine the extent, substrate and waterproofing condition before choosing adhesive and repair.

After proper repair and curing the tile should not move. New grout alone does not prove adhesion is restored.

Wall or facade tiles can fall. Keep people away and notify the manager; call 112 for immediate danger.

NAPREMO can assess the scope. Use ADMIN for shared areas and FIX for your home.

Technical references