Cut a strip of wood thinner than your crown moulding and the same width as your sheets of tile.
Crown molding around tile shower.
Start tiling directly under the board mark the location of your studs we did.
If you were to search for this problem online you would find people have tried every single one of the above for solutions to this same bathroom problem.
I regret not placing crown molding around the shower because it has created an open transition at the juncture picture below.
Crown molding abutts tile.
I suggested placing a rossette at the juncture but dear gc doesn t like it when i think outside the box.
I might have suggested to build the crown out the thickness of the tile and continue the crown around the shower over the tile so you would not get the finish you have.
Transitioning crown molding between tile and drywall.
Using a piece of crown molding as a reference nail the board to the wall slightly above the bottom edge of the crown.
Or maybe cut out some of the bottom of the crown molding to fit around the tile.