Helf !!!!! I have finally installed my Kerdi membrane on the shower floor. There appears to be a small section that did not adhere to the thin set mortar with latex additive. What should I do ? Would there be any harm in just tiling on top?

Hi
Not a problem. The nice thing about Kerdi is that you can patch it. Cut out the loose area..and then put a kerdi patch over it...overlaping the old kerdi at least 2 inchs...or even more if you want.