Garmaine Staff asked 3 years ago

We just moved into a newly constructed apartment (construction finished on this unit at least 8 weeks ago). When I set my hand on the shower wall getting in and out, I noticed that a powder stuck to it–both with a wet and dry hand. It appears that the grout is coming off. I also noticed a few spots where there were small holes and cracks in the grout. What could be causing this? What is the fix?