Answer answer the fact that there is a squeak under the tile suggests that the wood underlayment subfloor is moving to some degree.
New tile floor squeak.
What kind of substrate was used for the tile installation.
In the case of old shoes squeaking may happen due to damages either to the outsoles or insoles.
Use superglue for broken bottom.
Normally this is avoided if when the wood subfloor underlayment is installed it is glued and screwed so there isn t any movement or chance for there.
Gaps between the pan and floor sometimes squeaks are caused where the floor tile meets the shower pan.
I doubt that it is the tile assembly itself moving independent of the floor but that would have to be verified.
It might be trying to tell you something.
Either way you can easily stop shoe from squeaking at home.
Look for protruding nails and hammer them into the wood.
How to stop shoe soles from squeaking for old shoes.
Underlayment should have been attatched with screws or staples at a rate of every 3 4 at all seams and 8 10 through the field of each sheet.
See our article for the 5 things that might be causing your floor to squeak and creak.
Hear a squeaky wood floor in your home.